Top 1,275 History keywords: know what buyers are searching for
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The volumes shown for the keywords below were last updated on Mar 31, 2025.
|
No
|
Keyword
|
Search Volume
|
CPC
|
Competition
|
Trend |
|---|---|---|---|---|---|
| 1 | libraries | 5,000,000 | $0.08 | 0.03 |
|
| 2 | gladiators | 4,090,000 | $0.26 | 0.01 |
|
| 3 | vikings | 4,090,000 | $1.77 | 0.06 |
|
| 4 | compass | 3,350,000 | $0.01 | 0.24 |
|
| 5 | radio | 3,350,000 | $0.01 | 0.31 |
|
| 6 | shogun | 3,350,000 | $0.41 | 0.03 |
|
| 7 | shogunate | 3,350,000 | $0.41 | 0.03 |
|
| 8 | castles | 2,240,000 | $0.05 | 0.01 |
|
| 9 | internet | 2,240,000 | $0.70 | 0.28 |
|
| 10 | stock market | 2,240,000 | $0.31 | 0.10 |
|
| 11 | civil war | 2,240,000 | $0.81 | 0.00 |
|
| 12 | taj mahal | 2,240,000 | $0.10 | 0.22 |
|
| 13 | albert einstein | 2,240,000 | $0.04 | 0.01 |
|
| 14 | united nations | 2,240,000 | $0.45 | 0.01 |
|
| 15 | universities | 2,240,000 | $0.34 | 0.04 |
|
| 16 | eiffel tower | 2,240,000 | $0.38 | 0.34 |
|
| 17 | spacex | 1,830,000 | $0.04 | 0.01 |
|
| 18 | stephen hawking | 1,830,000 | $0.00 | 0.00 |
|
| 19 | chernobyl | 1,830,000 | $0.09 | 0.00 |
|
| 20 | isaac newton | 1,830,000 | $0.04 | 0.00 |
|
| 21 | jfk | 1,830,000 | $0.11 | 0.00 |
|
| 22 | adolf hitler | 1,830,000 | $0.01 | 0.00 |
|
| 23 | piracy | 1,830,000 | $0.18 | 0.01 |
|
| 24 | machu picchu | 1,830,000 | $0.15 | 0.07 |
|
| 25 | mona lisa | 1,830,000 | $0.08 | 0.17 |
|
| 26 | bill gates | 1,830,000 | $0.02 | 0.00 |
|
| 27 | smartphones | 1,500,000 | $0.09 | 1.00 |
|
| 28 | steve jobs | 1,500,000 | $0.00 | 0.00 |
|
| 29 | chernobyl disaster | 1,500,000 | $0.02 | 0.00 |
|
| 30 | cleopatra | 1,500,000 | $0.02 | 0.02 |
|
| 31 | colosseum | 1,500,000 | $0.55 | 0.28 |
|
| 32 | leonardo da vinci | 1,500,000 | $0.03 | 0.01 |
|
| 33 | covid19 | 1,500,000 | $0.33 | 0.02 |
|
| 34 | reformation | 1,500,000 | $0.10 | 1.00 |
|
| 35 | renaissance | 1,500,000 | $0.17 | 0.02 |
|
| 36 | medicine | 1,500,000 | $0.12 | 0.40 |
|
| 37 | don quixote | 1,500,000 | $0.06 | 0.07 |
|
| 38 | bible | 1,500,000 | $0.05 | 0.64 |
|
| 39 | nato | 1,500,000 | $0.13 | 0.00 |
|
| 40 | nelson mandela | 1,220,000 | $0.25 | 0.00 |
|
| 41 | new deal | 1,220,000 | $0.14 | 0.07 |
|
| 42 | sputnik | 1,220,000 | $0.05 | 0.01 |
|
| 43 | catholic church | 1,220,000 | $1.26 | 0.03 |
|
| 44 | statue of liberty | 1,220,000 | $0.46 | 0.38 |
|
| 45 | osama bin laden | 1,220,000 | $0.00 | 0.00 |
|
| 46 | stonehenge | 1,220,000 | $0.16 | 0.44 |
|
| 47 | telegraph | 1,220,000 | $0.04 | 0.02 |
|
| 48 | abraham lincoln | 1,220,000 | $0.05 | 0.00 |
|
| 49 | quran | 1,220,000 | $0.01 | 0.22 |
|
| 50 | marco polo | 1,220,000 | $0.21 | 1.00 |
|
| 51 | marie curie | 1,220,000 | $0.93 | 0.01 |
|
| 52 | vasco da gama | 1,220,000 | $0.13 | 0.02 |
|
| 53 | auschwitz | 1,220,000 | $0.33 | 0.07 |
|
| 54 | automobile | 1,220,000 | $0.05 | 0.49 |
|
| 55 | automobiles | 1,220,000 | $0.05 | 0.49 |
|
| 56 | electricity | 1,220,000 | $2.37 | 0.05 |
|
| 57 | nikola tesla | 1,000,000 | $0.00 | 0.00 |
|
| 58 | ethnicity | 1,000,000 | $0.02 | 0.15 |
|
| 59 | sparta | 1,000,000 | $0.10 | 0.13 |
|
| 60 | che guevara | 1,000,000 | $0.01 | 0.01 |
|
| 61 | fascism | 1,000,000 | $0.26 | 0.01 |
|
| 62 | paper | 1,000,000 | $0.15 | 0.15 |
|
| 63 | pearl harbor | 1,000,000 | $0.45 | 0.15 |
|
| 64 | telephone | 1,000,000 | $0.17 | 0.93 |
|
| 65 | karl marx | 1,000,000 | $0.01 | 0.00 |
|
| 66 | gandhi | 1,000,000 | $0.02 | 0.03 |
|
| 67 | genghis khan | 1,000,000 | $0.15 | 0.00 |
|
| 68 | george washington | 1,000,000 | $1.34 | 0.00 |
|
| 69 | legends | 1,000,000 | $0.05 | 0.03 |
|
| 70 | mahatma gandhi | 1,000,000 | $0.01 | 0.01 |
|
| 71 | greta thunberg | 1,000,000 | $0.00 | 0.00 |
|
| 72 | hannibal | 1,000,000 | $0.13 | 0.01 |
|
| 73 | archives | 1,000,000 | $0.02 | 0.01 |
|
| 74 | video games | 1,000,000 | $0.01 | 0.80 |
|
| 75 | saddam hussein | 1,000,000 | $0.00 | 0.00 |
|
| 76 | babylon | 1,000,000 | $0.03 | 0.01 |
|
| 77 | babylonia | 1,000,000 | $0.05 | 0.01 |
|
| 78 | babylonians | 1,000,000 | $0.03 | 0.01 |
|
| 79 | shakespeare | 1,000,000 | $0.03 | 0.01 |
|
| 80 | ice age | 823,000 | $1.03 | 0.10 |
|
| 81 | ice ages | 823,000 | $1.03 | 0.10 |
|
| 82 | immigration | 823,000 | $0.47 | 0.05 |
|
| 83 | socrates | 823,000 | $0.05 | 0.03 |
|
| 84 | stalin | 823,000 | $0.01 | 0.00 |
|
| 85 | stoicism | 823,000 | $0.28 | 0.03 |
|
| 86 | islam | 823,000 | $0.04 | 0.01 |
|
| 87 | penicillin | 823,000 | $1.56 | 0.03 |
|
| 88 | 1984 | 823,000 | $0.04 | 0.28 |
|
| 89 | philosophers | 823,000 | $0.91 | 0.09 |
|
| 90 | philosophy | 823,000 | $0.75 | 0.12 |
|
| 91 | greek alphabet | 823,000 | $0.09 | 0.22 |
|
| 92 | andy warhol | 823,000 | $0.09 | 0.02 |
|
| 93 | malcolm x | 823,000 | $0.00 | 0.00 |
|
| 94 | marie antoinette | 823,000 | $0.02 | 0.00 |
|
| 95 | dday | 823,000 | $0.38 | 0.00 |
|
| 96 | democracy | 823,000 | $0.31 | 0.00 |
|
| 97 | romanticism | 823,000 | $0.15 | 0.00 |
|
| 98 | rosa parks | 823,000 | $0.01 | 0.01 |
|
| 99 | michelangelo | 823,000 | $0.06 | 0.01 |
|
| 100 | william shakespeare | 823,000 | $0.02 | 0.00 |
|
| 101 | winston churchill | 823,000 | $0.01 | 0.01 |
|
| 102 | nazism | 673,000 | $0.12 | 0.00 |
|
| 103 | neil armstrong | 673,000 | $0.00 | 0.00 |
|
| 104 | nietzsche | 673,000 | $0.01 | 0.02 |
|
| 105 | indira gandhi | 673,000 | $0.01 | 0.00 |
|
| 106 | panama canal | 673,000 | $0.12 | 0.00 |
|
| 107 | fidel castro | 673,000 | $0.00 | 0.00 |
|
| 108 | jazz | 673,000 | $0.04 | 0.02 |
|
| 109 | folklore | 673,000 | $0.02 | 0.01 |
|
| 110 | julian assange | 673,000 | $0.00 | 0.00 |
|
| 111 | television | 673,000 | $0.08 | 0.98 |
|
| 112 | petra | 673,000 | $0.09 | 0.02 |
|
| 113 | acropolis | 673,000 | $0.27 | 0.37 |
|
| 114 | plato | 673,000 | $0.04 | 0.13 |
|
| 115 | goths | 673,000 | $0.26 | 0.05 |
|
| 116 | angkor wat | 673,000 | $0.17 | 0.03 |
|
| 117 | revolutions | 673,000 | $0.06 | 0.48 |
|
| 118 | hiroshima | 673,000 | $0.09 | 0.01 |
|
| 119 | athens | 673,000 | $0.23 | 0.05 |
|
| 120 | migration | 673,000 | $0.21 | 0.01 |
|
| 121 | samurai | 673,000 | $0.13 | 0.05 |
|
| 122 | woodstock | 673,000 | $0.02 | 0.04 |
|
| 123 | benjamin franklin | 673,000 | $0.03 | 0.00 |
|
| 124 | sigmund freud | 673,000 | $0.02 | 0.01 |
|
| 125 | neanderthals | 550,000 | $0.38 | 0.00 |
|
| 126 | sphinx | 550,000 | $0.05 | 0.03 |
|
| 127 | charles darwin | 550,000 | $0.20 | 0.00 |
|
| 128 | chichen itza | 550,000 | $0.14 | 0.41 |
|
| 129 | swords | 550,000 | $0.01 | 0.11 |
|
| 130 | sydney opera house | 550,000 | $0.10 | 0.34 |
|
| 131 | julius caesar | 550,000 | $0.02 | 0.00 |
|
| 132 | communism | 550,000 | $0.06 | 0.00 |
|
| 133 | thomas edison | 550,000 | $0.01 | 0.00 |
|
| 134 | pop art | 550,000 | $0.06 | 0.22 |
|
| 135 | alan turing | 550,000 | $0.00 | 0.01 |
|
| 136 | lenin | 550,000 | $0.01 | 0.00 |
|
| 137 | alexander the great | 550,000 | $0.13 | 0.00 |
|
| 138 | global warming | 550,000 | $0.13 | 0.01 |
|
| 139 | propaganda | 550,000 | $0.11 | 0.08 |
|
| 140 | pyramids | 550,000 | $0.15 | 0.02 |
|
| 141 | queen victoria | 550,000 | $0.02 | 0.02 |
|
| 142 | raphael | 550,000 | $0.06 | 0.00 |
|
| 143 | guernica | 550,000 | $0.05 | 0.09 |
|
| 144 | marcus aurelius | 550,000 | $0.02 | 0.05 |
|
| 145 | hagia sophia | 550,000 | $0.18 | 0.40 |
|
| 146 | vietnam war | 550,000 | $1.14 | 0.00 |
|
| 147 | rosetta stone | 550,000 | $0.30 | 0.16 |
|
| 148 | mesopotamia | 550,000 | $0.04 | 0.01 |
|
| 149 | runes | 550,000 | $0.13 | 0.17 |
|
| 150 | ayurveda | 550,000 | $0.22 | 0.40 |
|
| 151 | monarchy | 550,000 | $0.09 | 0.04 |
|
| 152 | mother teresa | 550,000 | $0.01 | 0.01 |
|
| 153 | mount rushmore | 550,000 | $0.36 | 0.41 |
|
| 154 | emiliano zapata | 450,000 | $0.01 | 0.02 |
|
| 155 | nero | 450,000 | $0.03 | 0.05 |
|
| 156 | buddhism | 450,000 | $0.29 | 0.01 |
|
| 157 | cathedrals | 450,000 | $0.22 | 0.02 |
|
| 158 | olympic games | 450,000 | $0.17 | 0.00 |
|
| 159 | christopher columbus | 450,000 | $0.01 | 0.00 |
|
| 160 | franks | 450,000 | $0.13 | 0.03 |
|
| 161 | taliban | 450,000 | $0.02 | 0.00 |
|
| 162 | persian gulf | 450,000 | $0.00 | 0.00 |
|
| 163 | g20 | 450,000 | $0.11 | 0.01 |
|
| 164 | galileo galilei | 450,000 | $0.00 | 0.01 |
|
| 165 | physiology | 450,000 | $0.64 | 0.00 |
|
| 166 | thomas jefferson | 450,000 | $0.27 | 0.00 |
|
| 167 | constitution | 450,000 | $0.58 | 0.03 |
|
| 168 | amelia earhart | 450,000 | $0.01 | 0.00 |
|
| 169 | red cross | 450,000 | $0.39 | 0.11 |
|
| 170 | mao zedong | 450,000 | $0.01 | 0.00 |
|
| 171 | apartheid | 450,000 | $0.25 | 0.00 |
|
| 172 | dalai lama | 450,000 | $0.00 | 0.00 |
|
| 173 | vaccination | 450,000 | $0.41 | 0.02 |
|
| 174 | vaccines | 450,000 | $0.38 | 0.03 |
|
| 175 | aristotle | 450,000 | $0.04 | 0.00 |
|
| 176 | voltaire | 450,000 | $0.04 | 0.02 |
|
| 177 | roe v wade | 450,000 | $0.01 | 0.03 |
|
| 178 | midway | 450,000 | $0.04 | 0.02 |
|
| 179 | baroque | 450,000 | $0.03 | 0.12 |
|
| 180 | dynasties | 450,000 | $0.07 | 0.01 |
|
| 181 | earth day | 450,000 | $1.04 | 0.00 |
|
| 182 | napoleon bonaparte | 450,000 | $0.03 | 0.00 |
|
| 183 | navigation | 368,000 | $0.01 | 0.08 |
|
| 184 | smallpox | 368,000 | $0.02 | 0.00 |
|
| 185 | immanuel kant | 368,000 | $0.01 | 0.00 |
|
| 186 | brexit | 368,000 | $0.35 | 0.00 |
|
| 187 | socialism | 368,000 | $0.02 | 0.00 |
|
| 188 | soviet union | 368,000 | $2.00 | 0.00 |
|
| 189 | oligarchy | 368,000 | $0.05 | 0.00 |
|
| 190 | existentialism | 368,000 | $0.89 | 0.00 |
|
| 191 | feminism | 368,000 | $0.13 | 0.00 |
|
| 192 | ottoman empire | 368,000 | $0.05 | 0.00 |
|
| 193 | jainism | 368,000 | $0.77 | 0.00 |
|
| 194 | pancho villa | 368,000 | $0.08 | 0.01 |
|
| 195 | joan of arc | 368,000 | $0.01 | 0.01 |
|
| 196 | john locke | 368,000 | $0.04 | 0.00 |
|
| 197 | joseph stalin | 368,000 | $0.00 | 0.00 |
|
| 198 | adam smith | 368,000 | $0.00 | 0.01 |
|
| 199 | knights | 368,000 | $0.08 | 0.01 |
|
| 200 | theodore roosevelt | 368,000 | $0.08 | 0.00 |
|
| 201 | amendments | 368,000 | $0.56 | 0.02 |
|
| 202 | machiavelli | 368,000 | $0.03 | 0.01 |
|
| 203 | great wall of china | 368,000 | $0.09 | 0.02 |
|
| 204 | apollo 11 | 368,000 | $0.00 | 0.00 |
|
| 205 | habeas corpus | 368,000 | $0.19 | 0.00 |
|
| 206 | martin luther | 368,000 | $0.02 | 0.00 |
|
| 207 | richard nixon | 368,000 | $0.01 | 0.00 |
|
| 208 | art deco | 368,000 | $0.20 | 0.16 |
|
| 209 | henry ford | 368,000 | $0.58 | 0.01 |
|
| 210 | henry viii | 368,000 | $0.01 | 0.00 |
|
| 211 | art nouveau | 368,000 | $0.29 | 0.05 |
|
| 212 | astronomy | 368,000 | $1.52 | 0.01 |
|
| 213 | atheism | 368,000 | $0.02 | 0.00 |
|
| 214 | diaspora | 368,000 | $0.19 | 0.00 |
|
| 215 | scientists | 368,000 | $0.01 | 0.00 |
|
| 216 | easter island | 368,000 | $0.43 | 0.02 |
|
| 217 | ho chi minh | 368,000 | $0.21 | 0.03 |
|
| 218 | holocaust | 368,000 | $0.53 | 0.00 |
|
| 219 | benito mussolini | 368,000 | $0.00 | 0.00 |
|
| 220 | shamanism | 368,000 | $0.29 | 0.01 |
|
| 221 | human development index | 368,000 | $0.22 | 0.05 |
|
| 222 | bhagavad gita | 368,000 | $0.01 | 0.49 |
|
| 223 | emancipation | 368,000 | $0.28 | 0.00 |
|
| 224 | simon bolivar | 368,000 | $0.00 | 0.01 |
|
| 225 | embassies | 301,000 | $0.21 | 0.04 |
|
| 226 | imf | 301,000 | $0.77 | 0.01 |
|
| 227 | braille | 301,000 | $0.11 | 0.04 |
|
| 228 | nonaligned movement | 301,000 | $0.07 | 0.03 |
|
| 229 | bushido | 301,000 | $0.07 | 0.07 |
|
| 230 | capitalism | 301,000 | $0.01 | 0.00 |
|
| 231 | catherine the great | 301,000 | $0.01 | 0.00 |
|
| 232 | explorers | 301,000 | $0.22 | 0.21 |
|
| 233 | charles de gaulle | 301,000 | $0.09 | 0.69 |
|
| 234 | james cook | 301,000 | $0.84 | 0.01 |
|
| 235 | surrealism | 301,000 | $0.16 | 0.00 |
|
| 236 | franklin d roosevelt | 301,000 | $0.25 | 0.02 |
|
| 237 | cold war | 301,000 | $0.04 | 0.00 |
|
| 238 | french revolution | 301,000 | $0.04 | 0.01 |
|
| 239 | kant | 301,000 | $0.01 | 0.00 |
|
| 240 | pharaohs | 301,000 | $0.27 | 0.02 |
|
| 241 | genocide | 301,000 | $0.30 | 0.00 |
|
| 242 | latin | 301,000 | $0.05 | 0.01 |
|
| 243 | constantinople | 301,000 | $0.10 | 0.00 |
|
| 244 | tiananmen square | 301,000 | $0.14 | 0.02 |
|
| 245 | alexander graham bell | 301,000 | $0.03 | 0.00 |
|
| 246 | alqaeda | 301,000 | $0.06 | 0.00 |
|
| 247 | light bulb | 301,000 | $0.40 | 0.91 |
|
| 248 | anarchism | 301,000 | $0.01 | 0.01 |
|
| 249 | great barrier reef | 301,000 | $0.43 | 0.41 |
|
| 250 | louis pasteur | 301,000 | $0.09 | 0.02 |
|
| 251 | great wall | 301,000 | $0.06 | 0.05 |
|
| 252 | magna carta | 301,000 | $0.20 | 0.05 |
|
| 253 | greek mythology | 301,000 | $0.05 | 0.03 |
|
| 254 | mansa musa | 301,000 | $0.00 | 0.00 |
|
| 255 | dante alighieri | 301,000 | $0.03 | 0.01 |
|
| 256 | republic | 301,000 | $0.05 | 0.02 |
|
| 257 | archaeology | 301,000 | $0.76 | 0.00 |
|
| 258 | declaration of independence | 301,000 | $0.74 | 0.08 |
|
| 259 | hinduism | 301,000 | $0.01 | 0.01 |
|
| 260 | roman empire | 301,000 | $0.05 | 0.00 |
|
| 261 | dictatorship | 301,000 | $0.48 | 0.01 |
|
| 262 | rousseau | 301,000 | $0.12 | 0.01 |
|
| 263 | sanskrit | 301,000 | $0.24 | 0.00 |
|
| 264 | beowulf | 301,000 | $0.11 | 0.05 |
|
| 265 | edward snowden | 301,000 | $0.99 | 0.00 |
|
| 266 | berlin wall | 301,000 | $0.17 | 0.03 |
|
| 267 | silk road | 301,000 | $0.04 | 0.03 |
|
| 268 | simone de beauvoir | 301,000 | $0.01 | 0.02 |
|
| 269 | boston tea party | 246,000 | $0.23 | 0.03 |
|
| 270 | notredame cathedral | 246,000 | $0.29 | 0.53 |
|
| 271 | industrial revolution | 246,000 | $0.17 | 0.00 |
|
| 272 | eugenics | 246,000 | $0.47 | 0.00 |
|
| 273 | charlemagne | 246,000 | $0.01 | 0.01 |
|
| 274 | stock market crash | 246,000 | $0.07 | 0.00 |
|
| 275 | irrigation | 246,000 | $0.52 | 0.05 |
|
| 276 | suez canal | 246,000 | $0.05 | 0.00 |
|
| 277 | chivalry | 246,000 | $0.06 | 0.00 |
|
| 278 | johann sebastian bach | 246,000 | $0.07 | 0.00 |
|
| 279 | frederick douglass | 246,000 | $0.04 | 0.05 |
|
| 280 | king tutankhamun | 246,000 | $0.10 | 0.03 |
|
| 281 | the odyssey | 246,000 | $0.05 | 0.10 |
|
| 282 | korean war | 246,000 | $0.02 | 0.00 |
|
| 283 | confucius | 246,000 | $0.16 | 0.00 |
|
| 284 | timbuktu | 246,000 | $2.62 | 0.00 |
|
| 285 | prohibition | 246,000 | $0.12 | 0.02 |
|
| 286 | gold rush | 246,000 | $0.11 | 0.02 |
|
| 287 | louis xiv | 246,000 | $0.04 | 0.00 |
|
| 288 | louis xvi | 246,000 | $0.04 | 0.00 |
|
| 289 | quakers | 246,000 | $0.02 | 0.19 |
|
| 290 | ramayana | 246,000 | $0.03 | 0.04 |
|
| 291 | realism | 246,000 | $0.17 | 0.05 |
|
| 292 | greenpeace | 246,000 | $0.83 | 0.08 |
|
| 293 | tutankhamun | 246,000 | $0.10 | 0.03 |
|
| 294 | guilds | 246,000 | $0.06 | 0.03 |
|
| 295 | daoism | 246,000 | $0.04 | 0.02 |
|
| 296 | martin luther king jr | 246,000 | $0.42 | 0.01 |
|
| 297 | hegemony | 246,000 | $0.12 | 0.01 |
|
| 298 | mccarthyism | 246,000 | $0.16 | 0.01 |
|
| 299 | hieroglyphics | 246,000 | $0.14 | 0.05 |
|
| 300 | descartes | 246,000 | $0.01 | 0.01 |
|
| 301 | hippocrates | 246,000 | $0.82 | 0.00 |
|
| 302 | memorials | 246,000 | $0.01 | 0.07 |
|
| 303 | mercosur | 246,000 | $0.02 | 0.00 |
|
| 304 | whistleblowers | 246,000 | $0.59 | 0.09 |
|
| 305 | wikileaks | 246,000 | $0.05 | 0.00 |
|
| 306 | aztecs | 246,000 | $0.39 | 0.02 |
|
| 307 | baghdad | 246,000 | $0.07 | 0.00 |
|
| 308 | donatello | 246,000 | $0.04 | 0.07 |
|
| 309 | world bank | 246,000 | $0.09 | 0.01 |
|
| 310 | segregation | 246,000 | $0.46 | 0.00 |
|
| 311 | zoroastrianism | 246,000 | $0.10 | 0.00 |
|
| 312 | mythology | 246,000 | $0.08 | 0.01 |
|
| 313 | nafta | 246,000 | $0.04 | 0.01 |
|
| 314 | nagasaki | 246,000 | $0.18 | 0.01 |
|
| 315 | shroud of turin | 246,000 | $0.81 | 0.30 |
|
| 316 | bill of rights | 246,000 | $0.21 | 0.14 |
|
| 317 | imperialism | 201,000 | $0.09 | 0.00 |
|
| 318 | impressionism | 201,000 | $0.20 | 0.04 |
|
| 319 | inca empire | 201,000 | $0.06 | 0.00 |
|
| 320 | enlightenment | 201,000 | $0.07 | 0.00 |
|
| 321 | incas | 201,000 | $0.08 | 0.00 |
|
| 322 | environmentalism | 201,000 | $0.69 | 0.36 |
|
| 323 | indus valley civilization | 201,000 | $0.02 | 0.00 |
|
| 324 | esperanto | 201,000 | $0.05 | 0.01 |
|
| 325 | carthage | 201,000 | $0.02 | 0.02 |
|
| 326 | european union | 201,000 | $0.49 | 0.00 |
|
| 327 | international space station | 201,000 | $0.21 | 0.00 |
|
| 328 | standardized testing | 201,000 | $0.90 | 0.73 |
|
| 329 | opec | 201,000 | $0.44 | 0.01 |
|
| 330 | intifada | 201,000 | $0.00 | 0.00 |
|
| 331 | intifadas | 201,000 | $0.00 | 0.00 |
|
| 332 | federalism | 201,000 | $2.10 | 0.00 |
|
| 333 | christianity | 201,000 | $0.53 | 0.00 |
|
| 334 | paleontology | 201,000 | $0.30 | 0.00 |
|
| 335 | feudalism | 201,000 | $0.02 | 0.00 |
|
| 336 | jamestown | 201,000 | $0.59 | 0.04 |
|
| 337 | paris agreement | 201,000 | $0.42 | 0.01 |
|
| 338 | jeanjacques rousseau | 201,000 | $0.04 | 0.00 |
|
| 339 | climate agreements | 201,000 | $0.42 | 0.01 |
|
| 340 | syrian civil war | 201,000 | $0.00 | 0.00 |
|
| 341 | judaism | 201,000 | $0.18 | 0.00 |
|
| 342 | tenochtitlan | 201,000 | $0.09 | 0.00 |
|
| 343 | teotihuacan | 201,000 | $0.34 | 0.05 |
|
| 344 | kepler | 201,000 | $0.09 | 0.02 |
|
| 345 | conservatism | 201,000 | $0.08 | 0.01 |
|
| 346 | gettysburg | 201,000 | $0.16 | 0.03 |
|
| 347 | copernicus | 201,000 | $0.12 | 0.01 |
|
| 348 | protestantism | 201,000 | $0.02 | 0.00 |
|
| 349 | amnesty international | 201,000 | $0.72 | 0.05 |
|
| 350 | pyramids of giza | 201,000 | $0.19 | 0.02 |
|
| 351 | crusades | 201,000 | $0.04 | 0.00 |
|
| 352 | ludwig van beethoven | 201,000 | $0.07 | 0.00 |
|
| 353 | greenhouse effect | 201,000 | $0.87 | 0.00 |
|
| 354 | gulag | 201,000 | $0.02 | 0.00 |
|
| 355 | us constitution | 201,000 | $0.07 | 0.15 |
|
| 356 | harappan culture | 201,000 | $0.02 | 0.00 |
|
| 357 | vedas | 201,000 | $0.01 | 0.03 |
|
| 358 | victorian era | 201,000 | $0.35 | 0.00 |
|
| 359 | robespierre | 201,000 | $0.01 | 0.01 |
|
| 360 | assyrians | 201,000 | $0.01 | 0.00 |
|
| 361 | rock and roll | 201,000 | $0.07 | 0.02 |
|
| 362 | salem witch trials | 201,000 | $0.06 | 0.01 |
|
| 363 | woodrow wilson | 201,000 | $0.21 | 0.00 |
|
| 364 | domestication of animals | 201,000 | $0.00 | 0.01 |
|
| 365 | montesquieu | 201,000 | $0.03 | 0.00 |
|
| 366 | yuri gagarin | 201,000 | $0.00 | 0.00 |
|
| 367 | zika virus | 201,000 | $0.01 | 0.01 |
|
| 368 | nationalism | 201,000 | $0.01 | 0.00 |
|
| 369 | ellis island | 201,000 | $0.33 | 0.52 |
|
| 370 | huns | 201,000 | $0.06 | 0.00 |
|
| 371 | blitzkrieg | 165,000 | $0.03 | 0.00 |
|
| 372 | epidemics | 165,000 | $0.28 | 0.06 |
|
| 373 | oliver cromwell | 165,000 | $0.56 | 0.00 |
|
| 374 | chariots | 165,000 | $0.26 | 0.75 |
|
| 375 | federal reserve | 165,000 | $0.15 | 0.01 |
|
| 376 | sumerians | 165,000 | $0.41 | 0.00 |
|
| 377 | classical music | 165,000 | $0.14 | 0.05 |
|
| 378 | fossil fuels | 165,000 | $2.00 | 0.00 |
|
| 379 | 13th amendment | 165,000 | $2.00 | 0.01 |
|
| 380 | john d rockefeller | 165,000 | $0.00 | 0.00 |
|
| 381 | 19th amendment | 165,000 | $1.99 | 0.01 |
|
| 382 | phoenicians | 165,000 | $0.18 | 0.03 |
|
| 383 | genealogy | 165,000 | $0.96 | 0.21 |
|
| 384 | kublai khan | 165,000 | $0.03 | 0.00 |
|
| 385 | geneva conventions | 165,000 | $2.00 | 0.01 |
|
| 386 | thomas hobbes | 165,000 | $0.03 | 0.00 |
|
| 387 | conspiracy theories | 165,000 | $0.03 | 0.06 |
|
| 388 | leif erikson | 165,000 | $0.01 | 0.01 |
|
| 389 | totalitarianism | 165,000 | $1.04 | 0.00 |
|
| 390 | libertarianism | 165,000 | $0.82 | 0.00 |
|
| 391 | american constitution | 165,000 | $0.19 | 0.09 |
|
| 392 | ancient egypt | 165,000 | $0.24 | 0.01 |
|
| 393 | quantum mechanics | 165,000 | $0.14 | 0.02 |
|
| 394 | machine guns | 165,000 | $0.00 | 0.00 |
|
| 395 | ramses ii | 165,000 | $0.01 | 0.00 |
|
| 396 | mahabharata | 165,000 | $0.03 | 0.11 |
|
| 397 | anglosaxons | 165,000 | $0.16 | 0.00 |
|
| 398 | gulf war | 165,000 | $0.00 | 0.00 |
|
| 399 | gulf wars | 165,000 | $0.00 | 0.00 |
|
| 400 | gunpowder | 165,000 | $0.17 | 0.02 |
|
| 401 | marxism | 165,000 | $0.00 | 0.00 |
|
| 402 | hernan cortes | 165,000 | $0.01 | 0.00 |
|
| 403 | vladimir lenin | 165,000 | $0.00 | 0.00 |
|
| 404 | augustus | 165,000 | $0.24 | 0.01 |
|
| 405 | rosie the riveter | 165,000 | $0.14 | 0.44 |
|
| 406 | rwandan genocide | 165,000 | $0.00 | 0.00 |
|
| 407 | michel foucault | 165,000 | $0.01 | 0.01 |
|
| 408 | wolfgang amadeus mozart | 165,000 | $0.10 | 0.00 |
|
| 409 | scientific method | 165,000 | $0.06 | 0.00 |
|
| 410 | bastille day | 165,000 | $0.01 | 0.00 |
|
| 411 | east india companies | 165,000 | $0.10 | 0.01 |
|
| 412 | east india company | 165,000 | $0.10 | 0.01 |
|
| 413 | mughal empire | 165,000 | $0.00 | 0.00 |
|
| 414 | sharia law | 165,000 | $0.18 | 0.00 |
|
| 415 | human evolution | 165,000 | $0.71 | 0.02 |
|
| 416 | elizabeth i | 165,000 | $0.00 | 0.00 |
|
| 417 | slavery | 135,000 | $1.68 | 0.00 |
|
| 418 | eniac | 135,000 | $0.13 | 0.03 |
|
| 419 | nile river | 135,000 | $0.41 | 0.00 |
|
| 420 | epicureanism | 135,000 | $0.14 | 0.11 |
|
| 421 | byzantine empire | 135,000 | $0.10 | 0.00 |
|
| 422 | space shuttle | 135,000 | $0.14 | 0.12 |
|
| 423 | espionage | 135,000 | $0.15 | 0.00 |
|
| 424 | inquisition | 135,000 | $0.00 | 0.00 |
|
| 425 | international criminal court | 135,000 | $0.65 | 0.01 |
|
| 426 | old english | 135,000 | $0.21 | 0.06 |
|
| 427 | james watt | 135,000 | $0.00 | 0.00 |
|
| 428 | susan b anthony | 135,000 | $0.63 | 0.01 |
|
| 429 | jim crow laws | 135,000 | $2.00 | 0.00 |
|
| 430 | colonization | 135,000 | $0.02 | 0.00 |
|
| 431 | concentration camps | 135,000 | $0.25 | 0.00 |
|
| 432 | pilgrims | 135,000 | $0.41 | 0.00 |
|
| 433 | the scream | 135,000 | $0.37 | 0.19 |
|
| 434 | the thinker | 135,000 | $0.14 | 0.47 |
|
| 435 | gilded age | 135,000 | $1.33 | 0.00 |
|
| 436 | tim bernerslee | 135,000 | $2.00 | 0.00 |
|
| 437 | torah | 135,000 | $0.09 | 0.06 |
|
| 438 | american civil war | 135,000 | $0.80 | 0.00 |
|
| 439 | gothic architecture | 135,000 | $0.21 | 0.16 |
|
| 440 | transpacific partnership | 135,000 | $0.25 | 0.00 |
|
| 441 | great depression | 135,000 | $0.01 | 0.00 |
|
| 442 | cuban missile crisis | 135,000 | $0.32 | 0.00 |
|
| 443 | treaty of versailles | 135,000 | $0.72 | 0.00 |
|
| 444 | ancient greece | 135,000 | $0.45 | 0.01 |
|
| 445 | cubism | 135,000 | $0.28 | 0.01 |
|
| 446 | ancient greek | 135,000 | $0.45 | 0.01 |
|
| 447 | gregor mendel | 135,000 | $0.03 | 0.00 |
|
| 448 | manifest destiny | 135,000 | $0.03 | 0.00 |
|
| 449 | manuscripts | 135,000 | $0.78 | 0.01 |
|
| 450 | universal basic income | 135,000 | $0.46 | 0.01 |
|
| 451 | war and peace | 135,000 | $0.01 | 0.20 |
|
| 452 | war of the roses | 135,000 | $0.05 | 0.00 |
|
| 453 | metric system | 135,000 | $0.20 | 0.02 |
|
| 454 | middle ages | 135,000 | $0.17 | 0.00 |
|
| 455 | saladin | 135,000 | $0.07 | 0.00 |
|
| 456 | sartre | 135,000 | $0.03 | 0.01 |
|
| 457 | wright brothers | 135,000 | $0.48 | 0.01 |
|
| 458 | eastern roman empire | 135,000 | $0.14 | 0.00 |
|
| 459 | moon landing | 135,000 | $0.02 | 0.00 |
|
| 460 | ziggurats | 135,000 | $0.10 | 0.00 |
|
| 461 | shintoism | 135,000 | $0.01 | 0.01 |
|
| 462 | humanism | 135,000 | $1.05 | 0.00 |
|
| 463 | black death | 135,000 | $0.15 | 0.00 |
|
| 464 | emancipation proclamation | 135,000 | $0.95 | 0.01 |
|
| 465 | british empire | 110,000 | $0.06 | 0.00 |
|
| 466 | indigenous peoples | 110,000 | $0.54 | 0.00 |
|
| 467 | brown v board of education | 110,000 | $0.88 | 0.01 |
|
| 468 | norse mythology | 110,000 | $0.13 | 0.06 |
|
| 469 | nuclear nonproliferation | 110,000 | $0.44 | 0.01 |
|
| 470 | stock exchanges | 110,000 | $0.35 | 0.12 |
|
| 471 | iraq war | 110,000 | $0.00 | 0.00 |
|
| 472 | stone age | 110,000 | $0.21 | 0.02 |
|
| 473 | iron age | 110,000 | $0.50 | 0.02 |
|
| 474 | chiang kaishek | 110,000 | $0.03 | 0.01 |
|
| 475 | ferdinand magellan | 110,000 | $0.01 | 0.00 |
|
| 476 | suffragettes | 110,000 | $0.94 | 0.00 |
|
| 477 | suleiman the magnificent | 110,000 | $0.07 | 0.00 |
|
| 478 | forbidden city | 110,000 | $0.30 | 0.03 |
|
| 479 | jihad | 110,000 | $0.01 | 0.00 |
|
| 480 | jose de san martin | 110,000 | $0.00 | 0.01 |
|
| 481 | colonialism | 110,000 | $0.29 | 0.00 |
|
| 482 | confederacy | 110,000 | $0.41 | 0.00 |
|
| 483 | confucianism | 110,000 | $0.33 | 0.00 |
|
| 484 | conquistadors | 110,000 | $0.14 | 0.01 |
|
| 485 | gettysburg address | 110,000 | $0.01 | 0.08 |
|
| 486 | postmodernism | 110,000 | $0.07 | 0.00 |
|
| 487 | titanic sinking | 110,000 | $0.73 | 0.01 |
|
| 488 | printing press | 110,000 | $0.46 | 0.23 |
|
| 489 | gloria steinem | 110,000 | $0.03 | 0.00 |
|
| 490 | liberalism | 110,000 | $0.00 | 0.00 |
|
| 491 | trail of tears | 110,000 | $0.02 | 0.01 |
|
| 492 | american revolution | 110,000 | $0.33 | 0.01 |
|
| 493 | puritans | 110,000 | $0.30 | 0.04 |
|
| 494 | qing dynasty | 110,000 | $0.22 | 0.00 |
|
| 495 | ancient civilizations | 110,000 | $1.33 | 0.02 |
|
| 496 | louisiana purchase | 110,000 | $0.15 | 0.01 |
|
| 497 | luddites | 110,000 | $0.34 | 0.00 |
|
| 498 | andrew carnegie | 110,000 | $0.01 | 0.00 |
|
| 499 | manhattan project | 110,000 | $0.92 | 0.01 |
|
| 500 | gregorian calendar | 110,000 | $0.00 | 0.02 |
|
| 501 | cuneiform | 110,000 | $0.00 | 0.00 |
|
| 502 | aqueducts | 110,000 | $0.08 | 0.01 |
|
| 503 | hanging gardens | 110,000 | $0.13 | 0.14 |
|
| 504 | astrolabe | 110,000 | $0.20 | 0.21 |
|
| 505 | war of 1812 | 110,000 | $1.84 | 0.02 |
|
| 506 | romantic period | 110,000 | $0.05 | 0.00 |
|
| 507 | attila the hun | 110,000 | $0.09 | 0.00 |
|
| 508 | watergate scandal | 110,000 | $0.00 | 0.00 |
|
| 509 | secularism | 110,000 | $0.02 | 0.00 |
|
| 510 | monotheism | 110,000 | $0.01 | 0.00 |
|
| 511 | battle of the bulge | 110,000 | $0.13 | 0.00 |
|
| 512 | battle of waterloo | 110,000 | $0.09 | 0.01 |
|
| 513 | holy roman empire | 110,000 | $0.05 | 0.00 |
|
| 514 | homeschooling | 110,000 | $0.53 | 0.24 |
|
| 515 | serfs | 110,000 | $1.60 | 0.00 |
|
| 516 | benazir bhutto | 110,000 | $0.00 | 0.00 |
|
| 517 | ibn battuta | 110,000 | $0.04 | 0.01 |
|
| 518 | byzantium | 90,500 | $0.11 | 0.00 |
|
| 519 | nuclear energy | 90,500 | $1.03 | 0.01 |
|
| 520 | nuremberg trials | 90,500 | $0.33 | 0.00 |
|
| 521 | spanish flu | 90,500 | $0.01 | 0.00 |
|
| 522 | caste system | 90,500 | $1.09 | 0.00 |
|
| 523 | expressionism | 90,500 | $0.13 | 0.00 |
|
| 524 | steam engine | 90,500 | $0.01 | 0.08 |
|
| 525 | charles lindbergh | 90,500 | $1.27 | 0.00 |
|
| 526 | civil rights movement | 90,500 | $0.49 | 0.00 |
|
| 527 | johannes gutenberg | 90,500 | $0.02 | 0.00 |
|
| 528 | julian calendar | 90,500 | $0.95 | 0.05 |
|
| 529 | friedrich engels | 90,500 | $0.01 | 0.00 |
|
| 530 | terracotta army | 90,500 | $0.14 | 0.06 |
|
| 531 | khmer rouge | 90,500 | $0.00 | 0.00 |
|
| 532 | common law | 90,500 | $0.08 | 0.00 |
|
| 533 | the iliad | 90,500 | $0.05 | 0.32 |
|
| 534 | the last supper | 90,500 | $0.00 | 0.00 |
|
| 535 | kristallnacht | 90,500 | $0.18 | 0.04 |
|
| 536 | theocracy | 90,500 | $0.00 | 0.00 |
|
| 537 | genetic engineering | 90,500 | $0.38 | 0.00 |
|
| 538 | kyoto protocol | 90,500 | $0.17 | 0.00 |
|
| 539 | plessy v ferguson | 90,500 | $1.70 | 0.00 |
|
| 540 | polytheism | 90,500 | $0.00 | 0.00 |
|
| 541 | title ix | 90,500 | $0.75 | 0.02 |
|
| 542 | lewis and clark | 90,500 | $0.02 | 0.00 |
|
| 543 | gold standard | 90,500 | $0.12 | 0.69 |
|
| 544 | library of alexandria | 90,500 | $0.14 | 0.00 |
|
| 545 | green revolution | 90,500 | $0.01 | 0.00 |
|
| 546 | reconquista | 90,500 | $0.06 | 0.01 |
|
| 547 | animism | 90,500 | $0.01 | 0.00 |
|
| 548 | dadaism | 90,500 | $0.11 | 0.00 |
|
| 549 | renaissance art | 90,500 | $0.24 | 0.05 |
|
| 550 | marshall plan | 90,500 | $0.26 | 0.00 |
|
| 551 | han dynasty | 90,500 | $0.45 | 0.02 |
|
| 552 | maurya empire | 90,500 | $0.00 | 0.00 |
|
| 553 | dead sea scrolls | 90,500 | $0.02 | 0.08 |
|
| 554 | armenian genocide | 90,500 | $0.00 | 0.00 |
|
| 555 | richard the lionheart | 90,500 | $0.09 | 0.00 |
|
| 556 | me too movement | 90,500 | $0.01 | 0.01 |
|
| 557 | deconstruction | 90,500 | $0.05 | 0.73 |
|
| 558 | deconstructionism | 90,500 | $0.07 | 0.78 |
|
| 559 | deng xiaoping | 90,500 | $0.05 | 0.00 |
|
| 560 | desert storm | 90,500 | $0.06 | 0.00 |
|
| 561 | detente | 90,500 | $0.19 | 0.00 |
|
| 562 | mercantilism | 90,500 | $0.02 | 0.00 |
|
| 563 | metoo movement | 90,500 | $0.01 | 0.01 |
|
| 564 | mexicanamerican war | 90,500 | $0.01 | 0.00 |
|
| 565 | ayatollah khomeini | 90,500 | $0.14 | 0.00 |
|
| 566 | ming dynasty | 90,500 | $0.64 | 0.01 |
|
| 567 | battle of midway | 90,500 | $0.20 | 0.00 |
|
| 568 | easter island statues | 90,500 | $0.16 | 0.30 |
|
| 569 | monroe doctrine | 90,500 | $0.02 | 0.00 |
|
| 570 | semiotics | 90,500 | $0.17 | 0.00 |
|
| 571 | moores law | 90,500 | $0.09 | 0.00 |
|
| 572 | mormonism | 90,500 | $1.07 | 0.05 |
|
| 573 | hubble telescope | 90,500 | $0.36 | 0.02 |
|
| 574 | multiculturalism | 90,500 | $0.03 | 0.00 |
|
| 575 | silent spring | 90,500 | $0.05 | 0.35 |
|
| 576 | sixday war | 74,000 | $0.14 | 0.00 |
|
| 577 | emmeline pankhurst | 74,000 | $0.65 | 0.00 |
|
| 578 | bolsheviks | 74,000 | $0.00 | 0.00 |
|
| 579 | nicolaus copernicus | 74,000 | $0.03 | 0.00 |
|
| 580 | bronze age | 74,000 | $0.94 | 0.04 |
|
| 581 | canterbury tales | 74,000 | $0.03 | 0.09 |
|
| 582 | spanish civil war | 74,000 | $0.07 | 0.00 |
|
| 583 | obergefell v hodges | 74,000 | $2.98 | 0.00 |
|
| 584 | spanish inquisition | 74,000 | $0.12 | 0.00 |
|
| 585 | spanishamerican war | 74,000 | $0.19 | 0.00 |
|
| 586 | operation barbarossa | 74,000 | $2.00 | 0.00 |
|
| 587 | fall of the berlin wall | 74,000 | $0.17 | 0.01 |
|
| 588 | iranian revolution | 74,000 | $0.14 | 0.00 |
|
| 589 | iraniraq war | 74,000 | $0.00 | 0.00 |
|
| 590 | checks and balances | 74,000 | $0.78 | 0.01 |
|
| 591 | irrigation systems | 74,000 | $0.44 | 0.87 |
|
| 592 | ozone depletion | 74,000 | $0.38 | 0.00 |
|
| 593 | sun yatsen | 74,000 | $0.06 | 0.00 |
|
| 594 | francisco pizarro | 74,000 | $0.01 | 0.00 |
|
| 595 | perestroika | 74,000 | $0.14 | 0.00 |
|
| 596 | persian empire | 74,000 | $0.14 | 0.00 |
|
| 597 | judicial review | 74,000 | $0.48 | 0.00 |
|
| 598 | abolitionism | 74,000 | $1.04 | 0.00 |
|
| 599 | peter the great | 74,000 | $0.00 | 0.00 |
|
| 600 | aboriginal australians | 74,000 | $0.13 | 0.00 |
|
| 601 | galen | 74,000 | $0.01 | 0.05 |
|
| 602 | king leopold ii | 74,000 | $0.00 | 0.00 |
|
| 603 | three mile island | 74,000 | $0.01 | 0.00 |
|
| 604 | league of nations | 74,000 | $0.06 | 0.00 |
|
| 605 | punk rock | 74,000 | $0.13 | 0.02 |
|
| 606 | railroads | 74,000 | $0.29 | 0.01 |
|
| 607 | trojan war | 74,000 | $0.08 | 0.00 |
|
| 608 | ancient rome | 74,000 | $0.07 | 0.00 |
|
| 609 | cyrus the great | 74,000 | $0.02 | 0.00 |
|
| 610 | universal declaration of human rights | 74,000 | $1.08 | 0.02 |
|
| 611 | arab spring | 74,000 | $0.14 | 0.00 |
|
| 612 | harappan civilization | 74,000 | $0.01 | 0.00 |
|
| 613 | harlem renaissance | 74,000 | $0.25 | 0.01 |
|
| 614 | herodotus | 74,000 | $0.10 | 0.01 |
|
| 615 | hiroshima and nagasaki | 74,000 | $0.00 | 0.00 |
|
| 616 | determinism | 74,000 | $0.00 | 0.00 |
|
| 617 | warsaw pact | 74,000 | $0.75 | 0.00 |
|
| 618 | weimar republic | 74,000 | $0.03 | 0.00 |
|
| 619 | russian revolution | 74,000 | $0.01 | 0.00 |
|
| 620 | divine comedy | 74,000 | $0.04 | 0.31 |
|
| 621 | dust bowl | 74,000 | $0.83 | 0.00 |
|
| 622 | battle of hastings | 74,000 | $0.08 | 0.00 |
|
| 623 | battle of stalingrad | 74,000 | $0.04 | 0.00 |
|
| 624 | yellow journalism | 74,000 | $0.00 | 0.00 |
|
| 625 | bay of pigs | 74,000 | $0.00 | 0.00 |
|
| 626 | seti | 74,000 | $2.03 | 0.03 |
|
| 627 | berlin wall falls | 74,000 | $0.06 | 0.00 |
|
| 628 | hundred years war | 74,000 | $0.13 | 0.00 |
|
| 629 | sir francis drake | 60,500 | $0.06 | 0.01 |
|
| 630 | boer wars | 60,500 | $0.00 | 0.00 |
|
| 631 | boxer rebellion | 60,500 | $0.05 | 0.00 |
|
| 632 | socratic method | 60,500 | $0.24 | 0.00 |
|
| 633 | soft power | 60,500 | $0.01 | 0.01 |
|
| 634 | epic of gilgamesh | 60,500 | $0.07 | 0.11 |
|
| 635 | indoeuropean languages | 60,500 | $0.06 | 0.00 |
|
| 636 | industrial design | 60,500 | $0.70 | 0.06 |
|
| 637 | etruscans | 60,500 | $0.14 | 0.00 |
|
| 638 | cave paintings | 60,500 | $0.11 | 0.02 |
|
| 639 | fall of rome | 60,500 | $0.21 | 0.01 |
|
| 640 | opium wars | 60,500 | $0.21 | 0.00 |
|
| 641 | stonewall riots | 60,500 | $0.02 | 0.02 |
|
| 642 | civil rights | 60,500 | $0.98 | 0.01 |
|
| 643 | patriot act | 60,500 | $0.35 | 0.00 |
|
| 644 | foreign policy | 60,500 | $0.24 | 0.02 |
|
| 645 | taiping rebellion | 60,500 | $0.09 | 0.00 |
|
| 646 | free market | 60,500 | $0.10 | 0.05 |
|
| 647 | freedom riders | 60,500 | $0.59 | 0.01 |
|
| 648 | abbasid caliphate | 60,500 | $0.00 | 0.00 |
|
| 649 | third reich | 60,500 | $0.01 | 0.00 |
|
| 650 | gini coefficient | 60,500 | $1.00 | 0.00 |
|
| 651 | glasnost | 60,500 | $0.01 | 0.00 |
|
| 652 | primary sources | 60,500 | $0.77 | 0.00 |
|
| 653 | cotton gin | 60,500 | $0.02 | 0.00 |
|
| 654 | toussaint louverture | 60,500 | $0.51 | 0.00 |
|
| 655 | trade unions | 60,500 | $0.56 | 0.03 |
|
| 656 | transcendentalism | 60,500 | $0.01 | 0.00 |
|
| 657 | crop rotation | 60,500 | $0.04 | 0.00 |
|
| 658 | treaties | 60,500 | $0.00 | 0.00 |
|
| 659 | greek philosophy | 60,500 | $0.07 | 0.00 |
|
| 660 | umayyad caliphate | 60,500 | $0.00 | 0.00 |
|
| 661 | underground railroad | 60,500 | $0.25 | 0.02 |
|
| 662 | dark ages | 60,500 | $0.12 | 0.00 |
|
| 663 | archduke franz ferdinand | 60,500 | $0.05 | 0.00 |
|
| 664 | das kapital | 60,500 | $0.03 | 0.33 |
|
| 665 | vaccinations | 60,500 | $0.34 | 0.06 |
|
| 666 | maya civilization | 60,500 | $0.01 | 0.00 |
|
| 667 | mayan civilization | 60,500 | $0.01 | 0.00 |
|
| 668 | armistice day | 60,500 | $2.43 | 0.00 |
|
| 669 | medieval period | 60,500 | $0.22 | 0.00 |
|
| 670 | desertification | 60,500 | $0.92 | 0.00 |
|
| 671 | augustus caesar | 60,500 | $0.02 | 0.00 |
|
| 672 | mercator projection | 60,500 | $0.10 | 0.00 |
|
| 673 | axis powers | 60,500 | $0.00 | 0.00 |
|
| 674 | samesex marriage | 60,500 | $0.30 | 0.00 |
|
| 675 | womens rights | 60,500 | $1.41 | 0.03 |
|
| 676 | domestication | 60,500 | $0.04 | 0.00 |
|
| 677 | world fairs | 60,500 | $0.10 | 0.01 |
|
| 678 | modernism | 60,500 | $2.00 | 0.02 |
|
| 679 | battle of britain | 60,500 | $0.25 | 0.00 |
|
| 680 | eastern orthodox church | 60,500 | $0.01 | 0.01 |
|
| 681 | hittites | 60,500 | $0.14 | 0.00 |
|
| 682 | separation of powers | 60,500 | $0.00 | 0.00 |
|
| 683 | yom kippur war | 60,500 | $1.99 | 0.00 |
|
| 684 | belt and road initiative | 60,500 | $0.31 | 0.02 |
|
| 685 | mummification | 60,500 | $0.00 | 0.00 |
|
| 686 | human rights watch | 60,500 | $2.00 | 0.04 |
|
| 687 | napoleonic wars | 60,500 | $0.26 | 0.00 |
|
| 688 | neoclassicism | 49,500 | $1.60 | 0.00 |
|
| 689 | english civil war | 49,500 | $0.42 | 0.01 |
|
| 690 | northwest passage | 49,500 | $0.88 | 0.02 |
|
| 691 | equal rights amendment | 49,500 | $1.99 | 0.02 |
|
| 692 | space telescopes | 49,500 | $0.01 | 0.40 |
|
| 693 | industrialization | 49,500 | $0.00 | 0.00 |
|
| 694 | fall of constantinople | 49,500 | $0.07 | 0.00 |
|
| 695 | fall of the soviet union | 49,500 | $0.05 | 0.00 |
|
| 696 | iron curtain | 49,500 | $0.36 | 0.00 |
|
| 697 | fertile crescent | 49,500 | $0.00 | 0.00 |
|
| 698 | folk music | 49,500 | $0.48 | 0.00 |
|
| 699 | john calvin | 49,500 | $0.01 | 0.01 |
|
| 700 | 2008 financial crisis | 49,500 | $0.10 | 0.00 |
|
| 701 | collapse of the soviet union | 49,500 | $0.07 | 0.00 |
|
| 702 | templars | 49,500 | $0.09 | 0.02 |
|
| 703 | aboriginal peoples | 49,500 | $0.52 | 0.00 |
|
| 704 | futurism | 49,500 | $1.33 | 0.00 |
|
| 705 | african union | 49,500 | $0.10 | 0.00 |
|
| 706 | thirty years war | 49,500 | $0.06 | 0.00 |
|
| 707 | constitutional monarchy | 49,500 | $0.00 | 0.00 |
|
| 708 | counterculture | 49,500 | $1.64 | 0.06 |
|
| 709 | treaty of paris | 49,500 | $0.62 | 0.00 |
|
| 710 | truman doctrine | 49,500 | $0.00 | 0.00 |
|
| 711 | gross domestic product | 49,500 | $0.07 | 0.00 |
|
| 712 | anzac | 49,500 | $0.04 | 0.01 |
|
| 713 | gupta empire | 49,500 | $0.00 | 0.00 |
|
| 714 | republic of china | 49,500 | $0.68 | 0.00 |
|
| 715 | mayan calendar | 49,500 | $0.20 | 0.12 |
|
| 716 | ashoka the great | 49,500 | $0.00 | 0.00 |
|
| 717 | assassination of archduke franz ferdinand | 49,500 | $0.00 | 0.00 |
|
| 718 | visigoths | 49,500 | $0.00 | 0.00 |
|
| 719 | war on drugs | 49,500 | $0.56 | 0.00 |
|
| 720 | aztec empire | 49,500 | $0.04 | 0.00 |
|
| 721 | millennium development goals | 49,500 | $0.72 | 0.01 |
|
| 722 | barter system | 49,500 | $0.05 | 0.00 |
|
| 723 | battle of gettysburg | 49,500 | $2.02 | 0.02 |
|
| 724 | seven years war | 49,500 | $0.00 | 0.00 |
|
| 725 | human genome project | 49,500 | $0.27 | 0.01 |
|
| 726 | huntergatherers | 49,500 | $0.28 | 0.17 |
|
| 727 | bolshevik revolution | 40,500 | $0.00 | 0.00 |
|
| 728 | social contract | 40,500 | $0.08 | 0.00 |
|
| 729 | independence movements | 40,500 | $0.00 | 0.00 |
|
| 730 | british raj | 40,500 | $0.46 | 0.00 |
|
| 731 | indian independence | 40,500 | $0.00 | 0.00 |
|
| 732 | space race | 40,500 | $0.30 | 0.00 |
|
| 733 | erik the red | 40,500 | $0.01 | 0.00 |
|
| 734 | international monetary fund | 40,500 | $0.13 | 0.01 |
|
| 735 | structuralism | 40,500 | $0.00 | 0.00 |
|
| 736 | chinese dynasties | 40,500 | $0.53 | 0.01 |
|
| 737 | fiveyear plans | 40,500 | $0.00 | 0.06 |
|
| 738 | francoprussian war | 40,500 | $0.03 | 0.00 |
|
| 739 | peloponnesian war | 40,500 | $0.11 | 0.00 |
|
| 740 | codebreaking | 40,500 | $0.15 | 0.02 |
|
| 741 | joseon dynasty | 40,500 | $0.11 | 0.03 |
|
| 742 | french and indian war | 40,500 | $0.07 | 0.01 |
|
| 743 | fridays for future | 40,500 | $0.93 | 0.00 |
|
| 744 | columbian exchange | 40,500 | $0.76 | 0.00 |
|
| 745 | fukushima disaster | 40,500 | $0.86 | 0.00 |
|
| 746 | keynesian economics | 40,500 | $0.03 | 0.01 |
|
| 747 | tet offensive | 40,500 | $0.19 | 0.00 |
|
| 748 | gallipoli campaign | 40,500 | $0.13 | 0.00 |
|
| 749 | the divine comedy | 40,500 | $0.10 | 0.55 |
|
| 750 | labor unions | 40,500 | $0.60 | 0.00 |
|
| 751 | three kingdoms | 40,500 | $1.25 | 0.03 |
|
| 752 | constantine the great | 40,500 | $0.01 | 0.01 |
|
| 753 | latin language | 40,500 | $0.09 | 0.00 |
|
| 754 | protestant reformation | 40,500 | $0.02 | 0.01 |
|
| 755 | punic wars | 40,500 | $0.00 | 0.00 |
|
| 756 | trench warfare | 40,500 | $0.07 | 0.00 |
|
| 757 | tripitaka | 40,500 | $0.02 | 0.03 |
|
| 758 | angel island | 40,500 | $0.29 | 0.49 |
|
| 759 | red scare | 40,500 | $0.00 | 0.00 |
|
| 760 | reign of terror | 40,500 | $0.00 | 0.00 |
|
| 761 | haitian revolution | 40,500 | $1.29 | 0.00 |
|
| 762 | urban sprawl | 40,500 | $2.75 | 0.00 |
|
| 763 | roald amundsen | 40,500 | $0.08 | 0.01 |
|
| 764 | robber barons | 40,500 | $0.05 | 0.00 |
|
| 765 | historians | 40,500 | $2.00 | 0.00 |
|
| 766 | historical fiction | 40,500 | $0.03 | 0.89 |
|
| 767 | russojapanese war | 40,500 | $0.01 | 0.00 |
|
| 768 | domesday book | 40,500 | $0.15 | 0.12 |
|
| 769 | woodstock festival | 40,500 | $0.00 | 0.00 |
|
| 770 | mixed economy | 40,500 | $0.00 | 0.00 |
|
| 771 | historiography | 40,500 | $0.27 | 0.00 |
|
| 772 | yalta conference | 40,500 | $0.01 | 0.00 |
|
| 773 | montgomery bus boycott | 40,500 | $0.85 | 0.01 |
|
| 774 | yugoslav wars | 40,500 | $0.00 | 0.00 |
|
| 775 | hubble space telescope | 40,500 | $0.23 | 0.01 |
|
| 776 | edwardian era | 40,500 | $0.00 | 0.00 |
|
| 777 | ibn khaldun | 33,100 | $0.05 | 0.03 |
|
| 778 | slave trade | 33,100 | $0.31 | 0.00 |
|
| 779 | social democracy | 33,100 | $1.28 | 0.00 |
|
| 780 | camp david accords | 33,100 | $0.15 | 0.00 |
|
| 781 | spanish armada | 33,100 | $0.23 | 0.00 |
|
| 782 | spanish empire | 33,100 | $0.00 | 0.00 |
|
| 783 | ocean acidification | 33,100 | $2.59 | 0.01 |
|
| 784 | oslo accords | 33,100 | $1.73 | 0.00 |
|
| 785 | federalist papers | 33,100 | $0.35 | 0.16 |
|
| 786 | civil disobedience | 33,100 | $0.22 | 0.00 |
|
| 787 | civil liberties | 33,100 | $0.50 | 0.04 |
|
| 788 | civil rights act | 33,100 | $2.00 | 0.00 |
|
| 789 | partition of india | 33,100 | $0.60 | 0.00 |
|
| 790 | peoples republic of china | 33,100 | $0.00 | 0.00 |
|
| 791 | 95 theses | 33,100 | $0.02 | 0.01 |
|
| 792 | command economy | 33,100 | $0.00 | 0.00 |
|
| 793 | absolutism | 33,100 | $0.00 | 0.00 |
|
| 794 | the communist manifesto | 33,100 | $0.17 | 0.44 |
|
| 795 | thomas more | 33,100 | $0.12 | 0.01 |
|
| 796 | thucydides | 33,100 | $0.06 | 0.01 |
|
| 797 | glass ceiling | 33,100 | $0.14 | 0.01 |
|
| 798 | covid19 pandemic | 33,100 | $1.65 | 0.01 |
|
| 799 | traditional chinese medicine | 33,100 | $0.42 | 0.10 |
|
| 800 | glorious revolution | 33,100 | $0.04 | 0.00 |
|
| 801 | transcontinental railroad | 33,100 | $0.27 | 0.00 |
|
| 802 | qin dynasty | 33,100 | $0.00 | 0.01 |
|
| 803 | ancient china | 33,100 | $0.36 | 0.00 |
|
| 804 | treaty of tordesillas | 33,100 | $0.76 | 0.00 |
|
| 805 | cuban revolution | 33,100 | $0.48 | 0.00 |
|
| 806 | treaty of westphalia | 33,100 | $0.07 | 0.00 |
|
| 807 | triangle trade | 33,100 | $0.21 | 0.00 |
|
| 808 | triangular trade | 33,100 | $0.21 | 0.00 |
|
| 809 | mali empire | 33,100 | $0.00 | 0.00 |
|
| 810 | tuskegee syphilis study | 33,100 | $4.05 | 0.01 |
|
| 811 | reconstruction | 33,100 | $0.00 | 0.00 |
|
| 812 | cultural revolution | 33,100 | $0.36 | 0.00 |
|
| 813 | hellenistic period | 33,100 | $0.28 | 0.00 |
|
| 814 | art history | 33,100 | $0.38 | 0.04 |
|
| 815 | assembly line | 33,100 | $0.13 | 0.01 |
|
| 816 | medici family | 33,100 | $0.04 | 0.00 |
|
| 817 | atlantic slave trade | 33,100 | $0.32 | 0.00 |
|
| 818 | meiji restoration | 33,100 | $0.01 | 0.00 |
|
| 819 | russian civil war | 33,100 | $0.00 | 0.00 |
|
| 820 | safavid empire | 33,100 | $0.00 | 0.00 |
|
| 821 | dotcom bubble | 33,100 | $0.24 | 0.00 |
|
| 822 | dutch east india company | 33,100 | $0.11 | 0.00 |
|
| 823 | world war i | 33,100 | $0.00 | 0.00 |
|
| 824 | battle of thermopylae | 33,100 | $0.14 | 0.00 |
|
| 825 | yuan dynasty | 33,100 | $0.00 | 0.00 |
|
| 826 | zheng he | 33,100 | $1.36 | 0.00 |
|
| 827 | economic systems | 33,100 | $0.15 | 0.00 |
|
| 828 | muckrakers | 33,100 | $1.18 | 0.00 |
|
| 829 | berlin airlift | 33,100 | $0.01 | 0.00 |
|
| 830 | zimmermann telegram | 33,100 | $0.01 | 0.00 |
|
| 831 | betty friedan | 33,100 | $0.04 | 0.00 |
|
| 832 | eli whitney | 33,100 | $0.00 | 0.00 |
|
| 833 | elizabeth cady stanton | 33,100 | $1.94 | 0.00 |
|
| 834 | income inequality | 27,100 | $0.57 | 0.00 |
|
| 835 | norman conquest | 27,100 | $0.10 | 0.00 |
|
| 836 | cambodian genocide | 27,100 | $0.00 | 0.00 |
|
| 837 | eric hobsbawm | 27,100 | $0.02 | 0.14 |
|
| 838 | nuremberg laws | 27,100 | $2.01 | 0.00 |
|
| 839 | occupy wall street | 27,100 | $2.00 | 0.00 |
|
| 840 | internment camps | 27,100 | $0.20 | 0.00 |
|
| 841 | stock market crash of 1929 | 27,100 | $0.04 | 0.00 |
|
| 842 | storming of the bastille | 27,100 | $0.03 | 0.00 |
|
| 843 | chinese civil war | 27,100 | $0.00 | 0.00 |
|
| 844 | feminist theory | 27,100 | $0.22 | 0.00 |
|
| 845 | suez canal crisis | 27,100 | $0.09 | 0.00 |
|
| 846 | suez crisis | 27,100 | $0.09 | 0.00 |
|
| 847 | classical period | 27,100 | $0.09 | 0.00 |
|
| 848 | code of hammurabi | 27,100 | $0.01 | 0.00 |
|
| 849 | technological innovations | 27,100 | $0.56 | 0.03 |
|
| 850 | french colonialism | 27,100 | $0.16 | 0.01 |
|
| 851 | khmer empire | 27,100 | $0.05 | 0.00 |
|
| 852 | teutonic knights | 27,100 | $0.00 | 0.01 |
|
| 853 | phoenician alphabet | 27,100 | $0.00 | 0.00 |
|
| 854 | age of enlightenment | 27,100 | $0.00 | 0.00 |
|
| 855 | germ theory | 27,100 | $0.00 | 0.00 |
|
| 856 | portuguese empire | 27,100 | $0.00 | 0.00 |
|
| 857 | constitutional convention | 27,100 | $2.00 | 0.00 |
|
| 858 | legalism | 27,100 | $0.01 | 0.00 |
|
| 859 | potsdam conference | 27,100 | $0.24 | 0.00 |
|
| 860 | tokugawa shogunate | 27,100 | $0.01 | 0.00 |
|
| 861 | allied powers | 27,100 | $2.79 | 0.00 |
|
| 862 | lewis and clark expedition | 27,100 | $0.01 | 0.01 |
|
| 863 | transatlantic slave trade | 27,100 | $0.45 | 0.00 |
|
| 864 | anasazi | 27,100 | $0.10 | 0.00 |
|
| 865 | great leap forward | 27,100 | $0.62 | 0.00 |
|
| 866 | great zimbabwe | 27,100 | $0.07 | 0.00 |
|
| 867 | reaganomics | 27,100 | $0.83 | 0.00 |
|
| 868 | march on washington | 27,100 | $0.26 | 0.00 |
|
| 869 | apollo missions | 27,100 | $0.22 | 0.00 |
|
| 870 | mass production | 27,100 | $0.15 | 0.01 |
|
| 871 | mayflower compact | 27,100 | $0.90 | 0.01 |
|
| 872 | roaring twenties | 27,100 | $0.17 | 0.05 |
|
| 873 | assyrian empire | 27,100 | $0.01 | 0.00 |
|
| 874 | meiji era | 27,100 | $0.02 | 0.01 |
|
| 875 | roman republic | 27,100 | $0.05 | 0.00 |
|
| 876 | mexican revolution | 27,100 | $0.04 | 0.00 |
|
| 877 | minoan civilization | 27,100 | $0.09 | 0.00 |
|
| 878 | satyagraha | 27,100 | $0.06 | 0.00 |
|
| 879 | baroque music | 27,100 | $0.34 | 0.00 |
|
| 880 | world war i causes | 27,100 | $0.10 | 0.00 |
|
| 881 | zen buddhism | 27,100 | $0.12 | 0.10 |
|
| 882 | shang dynasty | 27,100 | $0.00 | 0.00 |
|
| 883 | berlin conference | 27,100 | $0.08 | 0.00 |
|
| 884 | shipbuilding | 27,100 | $0.35 | 0.01 |
|
| 885 | egyptian pharaohs | 27,100 | $0.14 | 0.01 |
|
| 886 | social structures | 22,200 | $0.64 | 0.00 |
|
| 887 | indentured servitude | 22,200 | $0.00 | 0.00 |
|
| 888 | environmental justice | 22,200 | $2.00 | 0.02 |
|
| 889 | byzantine art | 22,200 | $0.18 | 0.07 |
|
| 890 | industrialists | 22,200 | $0.00 | 0.00 |
|
| 891 | srebrenica massacre | 22,200 | $0.00 | 0.00 |
|
| 892 | fall of saigon | 22,200 | $0.00 | 0.00 |
|
| 893 | islamic golden age | 22,200 | $0.16 | 0.00 |
|
| 894 | israelipalestinian conflict | 22,200 | $0.00 | 0.00 |
|
| 895 | feudal japan | 22,200 | $0.00 | 0.00 |
|
| 896 | final solution | 22,200 | $0.16 | 0.00 |
|
| 897 | japanese feudalism | 22,200 | $0.00 | 0.00 |
|
| 898 | penicillin discovery | 22,200 | $0.00 | 0.00 |
|
| 899 | gender studies | 22,200 | $0.23 | 0.01 |
|
| 900 | congress of vienna | 22,200 | $0.08 | 0.00 |
|
| 901 | laozi | 22,200 | $0.02 | 0.01 |
|
| 902 | agricultural revolution | 22,200 | $0.84 | 0.00 |
|
| 903 | gladiator games | 22,200 | $0.28 | 0.05 |
|
| 904 | poststructuralism | 22,200 | $0.00 | 0.00 |
|
| 905 | council of trent | 22,200 | $0.01 | 0.00 |
|
| 906 | literacy rates | 22,200 | $0.00 | 0.00 |
|
| 907 | great migration | 22,200 | $0.32 | 0.01 |
|
| 908 | ancient india | 22,200 | $0.01 | 0.00 |
|
| 909 | antarctic treaty | 22,200 | $0.10 | 0.00 |
|
| 910 | cyber warfare | 22,200 | $1.06 | 0.01 |
|
| 911 | darius i | 22,200 | $0.00 | 0.00 |
|
| 912 | darius the great | 22,200 | $0.00 | 0.00 |
|
| 913 | decolonization | 22,200 | $0.09 | 0.01 |
|
| 914 | historical monuments | 22,200 | $0.43 | 0.00 |
|
| 915 | baroque period | 22,200 | $0.00 | 0.00 |
|
| 916 | scientific revolution | 22,200 | $0.18 | 0.00 |
|
| 917 | scramble for africa | 22,200 | $0.11 | 0.00 |
|
| 918 | beat generation | 22,200 | $0.00 | 0.03 |
|
| 919 | belgian congo | 22,200 | $0.00 | 0.00 |
|
| 920 | howard zinn | 22,200 | $0.13 | 0.26 |
|
| 921 | napoleonic code | 22,200 | $0.00 | 0.00 |
|
| 922 | elizabethan era | 22,200 | $0.00 | 0.00 |
|
| 923 | natural rights | 22,200 | $0.00 | 0.00 |
|
| 924 | encomienda system | 18,100 | $0.00 | 0.00 |
|
| 925 | neolithic revolution | 18,100 | $0.00 | 0.00 |
|
| 926 | bosnian genocide | 18,100 | $0.00 | 0.00 |
|
| 927 | social movements | 18,100 | $2.00 | 0.00 |
|
| 928 | british east india company | 18,100 | $0.00 | 0.00 |
|
| 929 | epic poems | 18,100 | $0.00 | 0.00 |
|
| 930 | nuclear accidents | 18,100 | $0.18 | 0.00 |
|
| 931 | information age | 18,100 | $0.06 | 0.00 |
|
| 932 | irancontra affair | 18,100 | $0.00 | 0.00 |
|
| 933 | civil law | 18,100 | $2.34 | 0.35 |
|
| 934 | sumerian civilization | 18,100 | $0.17 | 0.00 |
|
| 935 | fourteen points | 18,100 | $0.33 | 0.00 |
|
| 936 | temperance movement | 18,100 | $0.08 | 0.00 |
|
| 937 | kingdom of kush | 18,100 | $0.07 | 0.00 |
|
| 938 | age of discovery | 18,100 | $0.00 | 0.00 |
|
| 939 | age of exploration | 18,100 | $0.00 | 0.00 |
|
| 940 | pompeii eruption | 18,100 | $0.09 | 0.00 |
|
| 941 | great awakening | 18,100 | $0.00 | 0.00 |
|
| 942 | great recession | 18,100 | $0.11 | 0.00 |
|
| 943 | ancient mesopotamia | 18,100 | $0.04 | 0.00 |
|
| 944 | reconstruction era | 18,100 | $0.09 | 0.00 |
|
| 945 | red guards | 18,100 | $0.24 | 0.55 |
|
| 946 | dendrochronology | 18,100 | $0.13 | 0.00 |
|
| 947 | war in afghanistan | 18,100 | $0.00 | 0.00 |
|
| 948 | roman mythology | 18,100 | $0.10 | 0.01 |
|
| 949 | westward expansion | 18,100 | $0.00 | 0.00 |
|
| 950 | middle passage | 18,100 | $0.00 | 0.00 |
|
| 951 | babylonian empire | 18,100 | $0.00 | 0.00 |
|
| 952 | balkan wars | 18,100 | $0.00 | 0.00 |
|
| 953 | modern history | 18,100 | $0.01 | 0.01 |
|
| 954 | world war i alliances | 18,100 | $3.59 | 0.00 |
|
| 955 | secondary sources | 18,100 | $1.95 | 0.00 |
|
| 956 | battle of marathon | 18,100 | $0.00 | 0.00 |
|
| 957 | selma to montgomery marches | 18,100 | $0.88 | 0.00 |
|
| 958 | seneca falls convention | 18,100 | $0.85 | 0.01 |
|
| 959 | sepoy mutiny | 18,100 | $0.00 | 0.00 |
|
| 960 | economic inequality | 18,100 | $0.35 | 0.00 |
|
| 961 | zhou dynasty | 18,100 | $0.00 | 0.00 |
|
| 962 | berlin blockade | 18,100 | $0.01 | 0.00 |
|
| 963 | zulu wars | 18,100 | $0.00 | 0.00 |
|
| 964 | humanitarian law | 18,100 | $0.92 | 0.01 |
|
| 965 | songhai empire | 14,800 | $0.00 | 0.00 |
|
| 966 | bushido code | 14,800 | $0.05 | 0.06 |
|
| 967 | canon law | 14,800 | $2.16 | 0.01 |
|
| 968 | onechild policy | 14,800 | $0.39 | 0.00 |
|
| 969 | ostrogoths | 14,800 | $0.00 | 0.00 |
|
| 970 | feminist movement | 14,800 | $1.60 | 0.01 |
|
| 971 | fernand braudel | 14,800 | $0.03 | 0.04 |
|
| 972 | supplyside economics | 14,800 | $0.02 | 0.01 |
|
| 973 | penal colonies | 14,800 | $0.00 | 0.00 |
|
| 974 | persian gulf war | 14,800 | $0.00 | 0.00 |
|
| 975 | persian wars | 14,800 | $0.00 | 0.00 |
|
| 976 | abolition movement | 14,800 | $0.77 | 0.00 |
|
| 977 | french indochina | 14,800 | $0.00 | 0.00 |
|
| 978 | abolitionist movement | 14,800 | $0.77 | 0.00 |
|
| 979 | political ideologies | 14,800 | $0.69 | 0.00 |
|
| 980 | akbar the great | 14,800 | $0.01 | 0.00 |
|
| 981 | progressive era | 14,800 | $0.00 | 0.00 |
|
| 982 | prohibition era | 14,800 | $0.02 | 0.00 |
|
| 983 | lgbtq rights | 14,800 | $0.02 | 0.02 |
|
| 984 | creation of israel | 14,800 | $1.99 | 0.02 |
|
| 985 | little ice age | 14,800 | $0.00 | 0.00 |
|
| 986 | great schism | 14,800 | $0.01 | 0.00 |
|
| 987 | cultural festivals | 14,800 | $0.04 | 0.00 |
|
| 988 | hacktivism | 14,800 | $0.03 | 0.00 |
|
| 989 | hammurabis code | 14,800 | $0.01 | 0.00 |
|
| 990 | hanseatic league | 14,800 | $0.12 | 0.00 |
|
| 991 | declaration of the rights of man | 14,800 | $0.00 | 0.00 |
|
| 992 | viking age | 14,800 | $0.07 | 0.00 |
|
| 993 | medical history | 14,800 | $0.62 | 0.01 |
|
| 994 | medieval europe | 14,800 | $0.07 | 0.00 |
|
| 995 | desegregation | 14,800 | $0.00 | 0.00 |
|
| 996 | historical materialism | 14,800 | $0.00 | 0.00 |
|
| 997 | domino theory | 14,800 | $0.00 | 0.00 |
|
| 998 | ebola outbreak | 14,800 | $0.04 | 0.01 |
|
| 999 | energy crisis | 12,100 | $0.59 | 0.00 |
|
| 1,000 | inca civilization | 12,100 | $0.02 | 0.00 |
|
| 1,001 | equal pay act | 12,100 | $1.08 | 0.02 |
|
| 1,002 | internet history | 12,100 | $1.31 | 0.01 |
|
| 1,003 | iroquois confederacy | 12,100 | $0.00 | 0.00 |
|
| 1,004 | freedom of information | 12,100 | $1.83 | 0.01 |
|
| 1,005 | philippine revolution | 12,100 | $0.00 | 0.00 |
|
| 1,006 | philosophy of history | 12,100 | $0.03 | 0.18 |
|
| 1,007 | age of reason | 12,100 | $0.01 | 0.04 |
|
| 1,008 | aids epidemic | 12,100 | $0.48 | 0.01 |
|
| 1,009 | postcolonialism | 12,100 | $0.00 | 0.00 |
|
| 1,010 | glasnost and perestroika | 12,100 | $0.01 | 0.01 |
|
| 1,011 | global financial crises | 12,100 | $0.35 | 0.00 |
|
| 1,012 | global financial crisis | 12,100 | $0.35 | 0.00 |
|
| 1,013 | counterreformation | 12,100 | $0.34 | 0.00 |
|
| 1,014 | long march | 12,100 | $0.05 | 0.02 |
|
| 1,015 | great purge | 12,100 | $0.00 | 0.00 |
|
| 1,016 | cultural exchanges | 12,100 | $0.49 | 0.01 |
|
| 1,017 | cultural imperialism | 12,100 | $0.00 | 0.00 |
|
| 1,018 | darfur genocide | 12,100 | $0.00 | 0.00 |
|
| 1,019 | velvet revolution | 12,100 | $0.00 | 0.01 |
|
| 1,020 | media studies | 12,100 | $0.79 | 0.09 |
|
| 1,021 | robert falcon scott | 12,100 | $0.04 | 0.00 |
|
| 1,022 | digital age | 12,100 | $0.21 | 0.00 |
|
| 1,023 | historical figures | 12,100 | $0.00 | 0.00 |
|
| 1,024 | aztec civilization | 12,100 | $0.05 | 0.00 |
|
| 1,025 | history of science | 12,100 | $0.13 | 0.02 |
|
| 1,026 | economic theories | 12,100 | $0.18 | 0.00 |
|
| 1,027 | edward gibbon | 12,100 | $0.03 | 0.12 |
|
| 1,028 | native american history | 12,100 | $0.22 | 0.06 |
|
| 1,029 | industrial pollution | 9,900 | $1.62 | 0.00 |
|
| 1,030 | olmec civilization | 9,900 | $0.05 | 0.00 |
|
| 1,031 | chariot racing | 9,900 | $0.53 | 0.04 |
|
| 1,032 | oral histories | 9,900 | $1.99 | 0.00 |
|
| 1,033 | oral history | 9,900 | $1.99 | 0.00 |
|
| 1,034 | oral traditions | 9,900 | $0.08 | 0.00 |
|
| 1,035 | paleolithic era | 9,900 | $0.00 | 0.00 |
|
| 1,036 | suffragette movement | 9,900 | $2.00 | 0.01 |
|
| 1,037 | japanese internment | 9,900 | $1.74 | 0.01 |
|
| 1,038 | jazz age | 9,900 | $1.55 | 0.00 |
|
| 1,039 | peace of westphalia | 9,900 | $0.09 | 0.00 |
|
| 1,040 | peace treaties | 9,900 | $0.00 | 0.00 |
|
| 1,041 | peasants revolt | 9,900 | $2.89 | 0.00 |
|
| 1,042 | plymouth colony | 9,900 | $0.00 | 0.00 |
|
| 1,043 | americanization | 9,900 | $0.00 | 0.00 |
|
| 1,044 | ancient olympics | 9,900 | $0.00 | 0.00 |
|
| 1,045 | cultural icons | 9,900 | $0.00 | 0.00 |
|
| 1,046 | antarctic exploration | 9,900 | $0.82 | 0.43 |
|
| 1,047 | universal suffrage | 9,900 | $0.00 | 0.00 |
|
| 1,048 | renaissance humanism | 9,900 | $0.00 | 0.00 |
|
| 1,049 | arabic script | 9,900 | $0.13 | 0.06 |
|
| 1,050 | historical agriculture | 9,900 | $1.05 | 0.01 |
|
| 1,051 | warsaw ghetto uprising | 9,900 | $1.20 | 0.01 |
|
| 1,052 | historical education | 9,900 | $0.24 | 0.01 |
|
| 1,053 | westernization | 9,900 | $0.00 | 0.00 |
|
| 1,054 | wheel invention | 9,900 | $0.00 | 0.00 |
|
| 1,055 | historical geography | 9,900 | $0.57 | 0.03 |
|
| 1,056 | historical music | 9,900 | $0.05 | 0.03 |
|
| 1,057 | historical periods | 9,900 | $0.32 | 0.00 |
|
| 1,058 | scholasticism | 9,900 | $0.00 | 0.00 |
|
| 1,059 | historical research | 9,900 | $0.35 | 0.00 |
|
| 1,060 | early modern period | 9,900 | $0.00 | 0.00 |
|
| 1,061 | monetarism | 9,900 | $0.11 | 0.00 |
|
| 1,062 | montessori method | 9,900 | $0.07 | 0.08 |
|
| 1,063 | human migration | 9,900 | $0.44 | 0.00 |
|
| 1,064 | black power movement | 8,100 | $0.00 | 0.00 |
|
| 1,065 | endangered languages | 8,100 | $7.71 | 0.01 |
|
| 1,066 | social history | 8,100 | $0.00 | 0.00 |
|
| 1,067 | environmental movement | 8,100 | $0.00 | 0.00 |
|
| 1,068 | environmental movements | 8,100 | $0.00 | 0.00 |
|
| 1,069 | nuclear proliferation | 8,100 | $0.16 | 0.00 |
|
| 1,070 | ethiopian empire | 8,100 | $0.00 | 0.00 |
|
| 1,071 | international courts | 8,100 | $1.01 | 0.01 |
|
| 1,072 | spice trade | 8,100 | $0.30 | 0.01 |
|
| 1,073 | eurozone crisis | 8,100 | $0.21 | 0.00 |
|
| 1,074 | central powers | 8,100 | $7.99 | 0.01 |
|
| 1,075 | interwar period | 8,100 | $2.14 | 0.00 |
|
| 1,076 | out of africa theory | 8,100 | $0.00 | 0.00 |
|
| 1,077 | suffrage movement | 8,100 | $1.48 | 0.01 |
|
| 1,078 | agrarian societies | 8,100 | $0.00 | 0.00 |
|
| 1,079 | legal systems | 8,100 | $1.14 | 0.01 |
|
| 1,080 | leopold von ranke | 8,100 | $0.03 | 0.01 |
|
| 1,081 | allied forces | 8,100 | $0.00 | 0.01 |
|
| 1,082 | trade routes | 8,100 | $0.86 | 0.02 |
|
| 1,083 | transsaharan trade | 8,100 | $0.00 | 0.00 |
|
| 1,084 | great society | 8,100 | $2.00 | 0.00 |
|
| 1,085 | tudor dynasty | 8,100 | $0.00 | 0.00 |
|
| 1,086 | twelve tables | 8,100 | $0.59 | 0.01 |
|
| 1,087 | refugee crisis | 8,100 | $1.80 | 0.02 |
|
| 1,088 | hip hop culture | 8,100 | $2.00 | 0.01 |
|
| 1,089 | roman law | 8,100 | $0.83 | 0.00 |
|
| 1,090 | digital revolution | 8,100 | $0.68 | 0.03 |
|
| 1,091 | historical literature | 8,100 | $0.06 | 0.01 |
|
| 1,092 | scientific discoveries | 8,100 | $0.21 | 0.01 |
|
| 1,093 | historical sociology | 8,100 | $0.00 | 0.00 |
|
| 1,094 | enlightened absolutism | 6,600 | $0.00 | 0.00 |
|
| 1,095 | enlightenment thinkers | 6,600 | $0.00 | 0.00 |
|
| 1,096 | code of justinian | 6,600 | $0.00 | 0.00 |
|
| 1,097 | justinian code | 6,600 | $0.00 | 0.00 |
|
| 1,098 | fukushima daiichi | 6,600 | $0.00 | 0.00 |
|
| 1,099 | tiananmen square protests | 6,600 | $0.60 | 0.00 |
|
| 1,100 | containment policy | 6,600 | $0.00 | 0.00 |
|
| 1,101 | ancient persia | 6,600 | $0.24 | 0.00 |
|
| 1,102 | cultural history | 6,600 | $0.22 | 0.01 |
|
| 1,103 | arabisraeli conflict | 6,600 | $0.72 | 0.00 |
|
| 1,104 | restoration period | 6,600 | $0.00 | 0.00 |
|
| 1,105 | hippie movement | 6,600 | $0.01 | 0.00 |
|
| 1,106 | aztec religion | 6,600 | $0.00 | 0.00 |
|
| 1,107 | womens liberation | 6,600 | $4.86 | 0.00 |
|
| 1,108 | historical medicine | 6,600 | $0.13 | 0.04 |
|
| 1,109 | housing bubble | 6,600 | $0.00 | 0.02 |
|
| 1,110 | education reform | 6,600 | $0.94 | 0.00 |
|
| 1,111 | space colonization | 5,400 | $0.00 | 0.01 |
|
| 1,112 | class systems | 5,400 | $0.00 | 0.00 |
|
| 1,113 | classical antiquity | 5,400 | $0.00 | 0.00 |
|
| 1,114 | climate activism | 5,400 | $0.97 | 0.01 |
|
| 1,115 | compulsory education | 5,400 | $0.00 | 0.00 |
|
| 1,116 | korean history | 5,400 | $0.07 | 0.01 |
|
| 1,117 | labor movement | 5,400 | $0.00 | 0.00 |
|
| 1,118 | labor movements | 5,400 | $0.00 | 0.00 |
|
| 1,119 | political history | 5,400 | $0.04 | 0.01 |
|
| 1,120 | trial by ordeal | 5,400 | $0.00 | 0.00 |
|
| 1,121 | tunisia revolution | 5,400 | $1.15 | 0.00 |
|
| 1,122 | religious history | 5,400 | $0.08 | 0.10 |
|
| 1,123 | reservation system | 5,400 | $1.24 | 0.22 |
|
| 1,124 | historical fashion | 5,400 | $0.17 | 0.15 |
|
| 1,125 | salt treaties | 5,400 | $0.00 | 0.00 |
|
| 1,126 | military history | 5,400 | $0.47 | 0.06 |
|
| 1,127 | historical method | 5,400 | $0.79 | 0.00 |
|
| 1,128 | historical methodology | 5,400 | $0.79 | 0.00 |
|
| 1,129 | modern olympics | 5,400 | $0.00 | 0.00 |
|
| 1,130 | easter island moai | 5,400 | $0.23 | 0.07 |
|
| 1,131 | history of technology | 5,400 | $0.34 | 0.01 |
|
| 1,132 | economic bubbles | 5,400 | $0.00 | 0.00 |
|
| 1,133 | economic history | 5,400 | $0.05 | 0.03 |
|
| 1,134 | economic reforms | 5,400 | $0.00 | 0.00 |
|
| 1,135 | naval warfare | 4,400 | $0.39 | 0.01 |
|
| 1,136 | nonviolent protest | 4,400 | $0.37 | 0.00 |
|
| 1,137 | canadian confederation | 4,400 | $1.00 | 0.00 |
|
| 1,138 | factory system | 4,400 | $0.99 | 0.01 |
|
| 1,139 | subprime mortgage crisis | 4,400 | $0.00 | 0.00 |
|
| 1,140 | public education | 4,400 | $7.81 | 0.00 |
|
| 1,141 | crusader states | 4,400 | $0.00 | 0.00 |
|
| 1,142 | mandate system | 4,400 | $0.55 | 0.01 |
|
| 1,143 | united nations formation | 4,400 | $0.75 | 0.01 |
|
| 1,144 | renaissance literature | 4,400 | $0.00 | 0.02 |
|
| 1,145 | archival research | 4,400 | $0.00 | 0.00 |
|
| 1,146 | demographic changes | 4,400 | $0.00 | 0.00 |
|
| 1,147 | atomic age | 4,400 | $0.00 | 0.00 |
|
| 1,148 | historical artifacts | 4,400 | $0.21 | 0.03 |
|
| 1,149 | wealth distribution | 4,400 | $0.39 | 0.00 |
|
| 1,150 | historical economics | 4,400 | $0.03 | 0.06 |
|
| 1,151 | discovery of fire | 4,400 | $0.20 | 0.00 |
|
| 1,152 | historical linguistics | 4,400 | $0.00 | 0.01 |
|
| 1,153 | historical sports | 4,400 | $0.07 | 0.00 |
|
| 1,154 | writing systems | 4,400 | $0.00 | 0.00 |
|
| 1,155 | hong kong handover | 4,400 | $0.42 | 0.00 |
|
| 1,156 | smallpox eradication | 3,600 | $0.00 | 0.00 |
|
| 1,157 | nuclear disarmament | 3,600 | $0.00 | 0.00 |
|
| 1,158 | occupy movement | 3,600 | $4.62 | 0.00 |
|
| 1,159 | iron smelting | 3,600 | $0.15 | 0.02 |
|
| 1,160 | palestinian liberation organization | 3,600 | $0.00 | 0.00 |
|
| 1,161 | peacekeeping missions | 3,600 | $0.22 | 0.00 |
|
| 1,162 | french empire | 3,600 | $0.00 | 0.00 |
|
| 1,163 | legal history | 3,600 | $0.27 | 0.01 |
|
| 1,164 | public history | 3,600 | $1.99 | 0.01 |
|
| 1,165 | responsibility to protect | 3,600 | $0.14 | 0.00 |
|
| 1,166 | medieval warm period | 3,600 | $0.00 | 0.00 |
|
| 1,167 | destalinization | 3,600 | $0.00 | 0.00 |
|
| 1,168 | historical documents | 3,600 | $0.55 | 0.01 |
|
| 1,169 | middle eastern history | 3,600 | $0.13 | 0.18 |
|
| 1,170 | barbarian invasions | 3,600 | $0.00 | 0.00 |
|
| 1,171 | historical preservation | 3,600 | $1.92 | 0.01 |
|
| 1,172 | indigenous rights | 2,900 | $4.06 | 0.01 |
|
| 1,173 | industrial capitalism | 2,900 | $0.00 | 0.00 |
|
| 1,174 | european colonialism | 2,900 | $0.00 | 0.00 |
|
| 1,175 | invention of the wheel | 2,900 | $0.00 | 0.00 |
|
| 1,176 | population studies | 2,900 | $0.00 | 0.00 |
|
| 1,177 | contemporary history | 2,900 | $0.21 | 0.01 |
|
| 1,178 | global pandemics | 2,900 | $0.37 | 0.00 |
|
| 1,179 | historical journals | 2,900 | $0.17 | 0.02 |
|
| 1,180 | historical revisionism | 2,900 | $0.00 | 0.00 |
|
| 1,181 | monastic schools | 2,900 | $1.03 | 0.06 |
|
| 1,182 | historical weaponry | 2,900 | $0.30 | 0.05 |
|
| 1,183 | silk production | 2,900 | $0.00 | 0.01 |
|
| 1,184 | silk road trade | 2,900 | $0.00 | 0.01 |
|
| 1,185 | silk trade | 2,900 | $0.00 | 0.01 |
|
| 1,186 | environmental history | 2,400 | $0.04 | 0.01 |
|
| 1,187 | nomadic tribes | 2,400 | $0.00 | 0.00 |
|
| 1,188 | nonproliferation treaty | 2,400 | $0.00 | 0.00 |
|
| 1,189 | oil embargo | 2,400 | $0.19 | 0.00 |
|
| 1,190 | technological unemployment | 2,400 | $0.00 | 0.00 |
|
| 1,191 | global organizations | 2,400 | $1.99 | 0.00 |
|
| 1,192 | greek debt crisis | 2,400 | $2.00 | 0.00 |
|
| 1,193 | darfur conflict | 2,400 | $0.00 | 0.00 |
|
| 1,194 | emperor qin shi huang | 1,900 | $0.00 | 0.00 |
|
| 1,195 | intellectual history | 1,900 | $0.00 | 0.01 |
|
| 1,196 | spartacus rebellion | 1,900 | $0.00 | 0.00 |
|
| 1,197 | 1960s counterculture | 1,900 | $0.00 | 0.00 |
|
| 1,198 | conflicts in africa | 1,900 | $1.99 | 0.01 |
|
| 1,199 | resistance movements | 1,900 | $0.00 | 0.00 |
|
| 1,200 | memory studies | 1,900 | $0.00 | 0.00 |
|
| 1,201 | digital history | 1,900 | $0.34 | 0.00 |
|
| 1,202 | aviation history | 1,900 | $0.53 | 0.01 |
|
| 1,203 | migration patterns | 1,900 | $0.00 | 0.00 |
|
| 1,204 | seljuk turks | 1,900 | $0.00 | 0.00 |
|
| 1,205 | fall of communism | 1,600 | $0.00 | 0.00 |
|
| 1,206 | gender history | 1,600 | $0.00 | 0.00 |
|
| 1,207 | latin american history | 1,600 | $0.14 | 0.06 |
|
| 1,208 | antiwar protests | 1,600 | $0.00 | 0.00 |
|
| 1,209 | religious reformations | 1,600 | $0.00 | 0.00 |
|
| 1,210 | religious texts | 1,600 | $1.12 | 0.01 |
|
| 1,211 | universal declaration | 1,600 | $1.52 | 0.01 |
|
| 1,212 | archaeological discoveries | 1,600 | $0.03 | 0.01 |
|
| 1,213 | rise of fascism | 1,600 | $0.27 | 0.01 |
|
| 1,214 | source criticism | 1,300 | $0.00 | 0.00 |
|
| 1,215 | celtic tribes | 1,300 | $0.00 | 0.04 |
|
| 1,216 | ottoman decline | 1,300 | $0.00 | 0.00 |
|
| 1,217 | kingdom of ghana | 1,300 | $0.00 | 0.00 |
|
| 1,218 | alchemy to chemistry | 1,300 | $0.00 | 0.01 |
|
| 1,219 | medical advancements | 1,300 | $0.07 | 0.05 |
|
| 1,220 | medical advances | 1,300 | $0.07 | 0.05 |
|
| 1,221 | war crimes trials | 1,300 | $0.00 | 0.00 |
|
| 1,222 | historical measurements | 1,300 | $0.00 | 0.00 |
|
| 1,223 | southeast asian history | 1,000 | $0.01 | 0.07 |
|
| 1,224 | internet development | 1,000 | $0.32 | 0.02 |
|
| 1,225 | internet revolution | 1,000 | $0.89 | 0.01 |
|
| 1,226 | peace movements | 1,000 | $0.00 | 0.00 |
|
| 1,227 | colonial latin america | 1,000 | $0.00 | 0.01 |
|
| 1,228 | african kingdoms | 1,000 | $0.00 | 0.04 |
|
| 1,229 | maritime history | 1,000 | $0.57 | 0.02 |
|
| 1,230 | urban history | 1,000 | $0.00 | 0.00 |
|
| 1,231 | historical disasters | 1,000 | $0.00 | 0.00 |
|
| 1,232 | disinformation campaigns | 1,000 | $0.00 | 0.00 |
|
| 1,233 | human rights movements | 1,000 | $0.00 | 0.01 |
|
| 1,234 | catholic counterreformation | 880 | $0.00 | 0.00 |
|
| 1,235 | colonial settlements | 880 | $0.00 | 0.00 |
|
| 1,236 | aboriginal rights | 880 | $1.28 | 0.00 |
|
| 1,237 | conservation movements | 880 | $0.00 | 0.00 |
|
| 1,238 | lgbtq rights movement | 880 | $0.45 | 0.03 |
|
| 1,239 | cultural movements | 880 | $0.00 | 0.00 |
|
| 1,240 | historical languages | 880 | $1.09 | 0.04 |
|
| 1,241 | nsa surveillance | 720 | $0.00 | 0.00 |
|
| 1,242 | feudal economy | 720 | $0.00 | 0.00 |
|
| 1,243 | aerial warfare | 720 | $0.00 | 0.00 |
|
| 1,244 | arctic exploration | 720 | $0.82 | 0.08 |
|
| 1,245 | historical art movements | 720 | $0.00 | 0.01 |
|
| 1,246 | historical demography | 720 | $0.00 | 0.00 |
|
| 1,247 | historical legislation | 720 | $0.00 | 0.00 |
|
| 1,248 | samurai culture | 720 | $0.06 | 0.01 |
|
| 1,249 | modern conflicts | 720 | $0.00 | 0.00 |
|
| 1,250 | economic miracle | 720 | $0.00 | 0.00 |
|
| 1,251 | rise of populism | 590 | $1.76 | 0.02 |
|
| 1,252 | womens suffrage | 590 | $0.00 | 0.00 |
|
| 1,253 | immigration waves | 480 | $0.00 | 0.01 |
|
| 1,254 | latin american independence | 480 | $0.00 | 0.00 |
|
| 1,255 | wealth of nations | 480 | $0.61 | 0.08 |
|
| 1,256 | polynesian voyages | 390 | $0.00 | 0.01 |
|
| 1,257 | enlightenment thought | 260 | $0.00 | 0.00 |
|
| 1,258 | anasazi culture | 260 | $0.00 | 0.00 |
|
| 1,259 | gunpowder weapons | 260 | $0.00 | 0.00 |
|
| 1,260 | refugee crises | 210 | $0.00 | 0.01 |
|
| 1,261 | historical landmarks | 210 | $0.00 | 0.00 |
|
| 1,262 | womens rights movement | 210 | $0.00 | 0.00 |
|
| 1,263 | ethiopian resistance | 140 | $0.00 | 0.00 |
|
| 1,264 | historical climatology | 140 | $0.00 | 0.01 |
|
| 1,265 | decolonizing history | 110 | $0.00 | 0.01 |
|
| 1,266 | historical treaties | 90 | $0.00 | 0.00 |
|
| 1,267 | colonial america | 50 | $0.00 | 0.00 |
|
| 1,268 | human cloning | 30 | $0.00 | 0.01 |
|
| 1,269 | naval exploration | 30 | $0.00 | 0.00 |
|
| 1,270 | french philosophes | 20 | $0.00 | 0.00 |
|
| 1,271 | industrial mechanization | 10 | $0.00 | 0.04 |
|
| 1,272 | language families | 10 | $0.00 | 0.00 |
|
| 1,273 | antivaccination movement | 10 | $0.00 | 0.00 |
|
| 1,274 | medieval universities | 10 | $0.00 | 0.00 |
|
| 1,275 | deterrence theory | 10 | $0.00 | 0.00 |
|
The volumes shown for the keywords above were last updated on Mar 31, 2025.