| 2018-11-24 | Burkhanism | Wikipedia audio article | 14:30 | 6 | |
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| 2018-11-24 | Worship | Wikipedia audio article | 12:37 | 3 | |
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| 2018-11-24 | Maya religion | Wikipedia audio article | 50:55 | 64 | |
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| 2018-11-24 | European integration | Wikipedia audio article | 1:08:52 | 44 | |
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| 2018-11-24 | Prussia | Wikipedia audio article | 1:02:29 | 74 | |
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| 2018-11-24 | Pope Francis | Wikipedia audio article | 2:27:20 | 492 | |
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| 2018-11-24 | Agnosticism | Wikipedia audio article | 31:27 | 3 | |
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| 2018-11-24 | History of Somalia | Wikipedia audio article | 1:12:30 | 407 | |
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| 2018-11-24 | Empire of Vietnam | Wikipedia audio article | 20:49 | 15 | |
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| 2018-11-24 | Feudalism | Wikipedia audio article | 31:04 | 9 | |
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| 2018-11-24 | Treaty of Versailles | Wikipedia audio article | 1:17:32 | 241 | |
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| 2018-11-24 | Colony of British Columbia (1858–66) | Wikipedia audio article | 23:20 | 62 | |
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| 2018-11-24 | Colony of Tasmania | Wikipedia audio article | 25:37 | 59 | |
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| 2018-11-24 | Malta Protectorate | Wikipedia audio article | 4:51 | 4 | |
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| 2018-11-24 | Province of New York | Wikipedia audio article | 45:43 | 56 | |
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| 2018-11-24 | MSNBC | Wikipedia audio article | 38:27 | 40 | |
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| 2018-11-24 | Protectorate | Wikipedia audio article | 25:33 | 20 | |
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| 2018-11-24 | Climate | Wikipedia audio article | 21:46 | 12 | |
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| 2018-11-24 | List of United States congressional districts | Wikipedia audio article | 1:12:59 | 19 | |
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| 2018-11-24 | Colony of Virginia | Wikipedia audio article | 48:44 | 61 | |
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| 2018-11-24 | Precipitation (meteorology) | Wikipedia audio article | 40:42 | 6 | Vlog |
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| 2018-11-24 | Humid continental climate | Wikipedia audio article | 10:39 | 105 | |
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| 2018-11-24 | Monsoon | Wikipedia audio article | 20:01 | 12 | |
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| 2018-11-24 | Great Lakes | Wikipedia audio article | 54:01 | 68 | |
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| 2018-11-24 | Ecoregion | Wikipedia audio article | 17:27 | 4 | |
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| 2018-11-24 | Valdes Peninsula | Wikipedia audio article | 4:34 | 5 | |
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| 2018-11-24 | Caatinga | Wikipedia audio article | 12:37 | 31 | |
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| 2018-11-24 | Great Hungarian Plain | Wikipedia audio article | 6:55 | 127 | |
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| 2018-11-24 | Bjarmaland | Wikipedia audio article | 7:20 | 212 | |
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| 2018-11-24 | Hadhramaut | Wikipedia audio article | 10:56 | 26 | |
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| 2018-11-24 | Bajío | Wikipedia audio article | 7:57 | 2 | |
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| 2018-11-24 | Columbia River Estuary | Wikipedia audio article | 1:10 | 15 | |
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| 2018-11-24 | Outer Lands | Wikipedia audio article | 4:11 | 5 | |
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| 2018-11-24 | Galicia (Eastern Europe) | Wikipedia audio article | 21:47 | 2,223 | |
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| 2018-11-24 | Yukon–Kuskokwim Delta | Wikipedia audio article | 2:00 | 28 | |
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| 2018-11-24 | Najd | Wikipedia audio article | 28:50 | 70 | |
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| 2018-11-24 | Samaria | Wikipedia audio article | 18:29 | 13 | |
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| 2018-11-24 | Lower Peninsula of Michigan | Wikipedia audio article | 8:11 | 14 | |
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| 2018-11-24 | Hejaz | Wikipedia audio article | 15:48 | 31 | |
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| 2018-11-24 | Ifriqiya | Wikipedia audio article | 16:34 | 35 | |
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| 2018-11-24 | Atlantic coastal plain | Wikipedia audio article | 1:21 | 186 | |
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| 2018-11-24 | Bible Belt | Wikipedia audio article | 14:43 | 41 | |
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| 2018-11-24 | Silicon Valley | Wikipedia audio article | 37:59 | 47 | |
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| 2018-11-24 | United States Attorney General | Wikipedia audio article | 9:08 | 3 | |
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| 2018-11-24 | Anglo-America | Wikipedia audio article | 2:24 | 0 | |
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| 2018-11-24 | James Madison | Wikipedia audio article | 1:01:49 | 127 | |
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| 2018-11-24 | Timeline of United States inventions (1946–91) | Wikipedia audio article | 2:13:59 | 649 | |
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| 2018-11-24 | Economy of the United States by sector | Wikipedia audio article | 2:32 | 2 | |
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| 2018-11-24 | List of rivers of the United States | Wikipedia audio article | 1:21 | 9 | |
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| 2018-11-24 | Communications in the United States | Wikipedia audio article | 7:13 | 3 | |
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| 2018-11-24 | Americana | Wikipedia audio article | 10:51 | 1 | |
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| 2018-11-24 | Television in the United States | Wikipedia audio article | 2:09:13 | 573 | |
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| 2018-11-24 | Foreign relations of the United States | Wikipedia audio article | 9:08 | 8 | |
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| 2018-11-24 | Public holidays in the United States | Wikipedia audio article | 1:02:59 | 16 | |
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| 2018-11-24 | Chinese language and varieties in the United States | Wikipedia audio article | 4:05 | 11 | | Civilization
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| 2018-11-24 | Education in the United States | Wikipedia audio article | 1:58:57 | 112 | |
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| 2018-11-24 | Religion in the United States | Wikipedia audio article | 1:01:48 | 70 | |
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| 2018-11-23 | American Sign Language | Wikipedia audio article | 35:15 | 26 | |
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| 2018-11-23 | Political status of Puerto Rico | Wikipedia audio article | 56:50 | 61 | |
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| 2018-11-23 | Mississippi River | Wikipedia audio article | 1:11:48 | 175 | |
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| 2018-11-23 | North Dakota | Wikipedia audio article | 1:06:10 | 116 | |
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| 2018-11-23 | Rhode Island | Wikipedia audio article | 1:02:06 | 134 | |
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| 2018-11-23 | Missouri | Wikipedia audio article | 1:07:58 | 192 | |
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| 2018-11-23 | Louisiana | Wikipedia audio article | 1:39:49 | 173 | |
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| 2018-11-23 | United States Secretary of State | Wikipedia audio article | 5:31 | 7 | |
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| 2018-11-23 | Antarctica | Wikipedia audio article | 1:03:46 | 54 | |
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| 2018-11-23 | Socotra | Wikipedia audio article | 30:13 | 51 | |
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| 2018-11-23 | Euro | Wikipedia audio article | 38:00 | 8 | |
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| 2018-11-22 | Tanzania | Wikipedia audio article | 1:02:44 | 217 | |
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| 2018-11-22 | Djibouti | Wikipedia audio article | 53:26 | 147 | |
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| 2018-11-22 | Gibraltar | Wikipedia audio article | 46:11 | 34 | |
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| 2018-11-22 | Slovakia | Wikipedia audio article | 1:13:47 | 57 | |
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| 2018-11-22 | White House | Wikipedia audio article | 39:08 | 67 | |
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| 2018-11-22 | Wolf Prize | Wikipedia audio article | 2:56 | 7 | |
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| 2018-11-22 | Australia | Wikipedia audio article | 1:01:02 | 89 | |
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| 2018-11-22 | University president | Wikipedia audio article | 30:37 | 4 | |
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| 2018-11-22 | University of South Carolina | Wikipedia audio article | 40:40 | 33 | |
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| 2018-11-22 | Dwight D. Eisenhower | Wikipedia audio article | 1:49:20 | 270 | |
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| 2018-11-22 | Molecular biology | Wikipedia audio article | 16:08 | 13 | Vlog |
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| 2018-11-22 | Science History Institute | Wikipedia audio article | 22:13 | 11 | |
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| 2018-11-22 | Edwin G. Krebs | Wikipedia audio article | 7:49 | 90 | |
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| 2018-11-22 | University of California | Wikipedia audio article | 50:03 | 29 | |
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| 2018-11-22 | Robert Bruce Merrifield | Wikipedia audio article | 4:27 | 140 | |
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| 2018-11-22 | Jerome Karle | Wikipedia audio article | 6:05 | 12 | |
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| 2018-11-22 | Geoffrey Wilkinson | Wikipedia audio article | 4:16 | 30 | |
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| 2018-11-22 | Charles J. Pedersen | Wikipedia audio article | 3:10 | 97 | |
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| 2018-11-22 | Arieh Warshel | Wikipedia audio article | 5:06 | 12 | |
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| 2018-11-22 | Linus Carl Pauling | Wikipedia audio article | 55:01 | 173 | |
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| 2018-11-22 | Roderick MacKinnon | Wikipedia audio article | 4:57 | 108 | |
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| 2018-11-22 | Kurt Wüthrich | Wikipedia audio article | 4:22 | 13 | |
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| 2018-11-22 | Thomas A. Steitz | Wikipedia audio article | 5:09 | 25 | |
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| 2018-11-22 | George de Hevesy | Wikipedia audio article | 8:22 | 161 | |
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| 2018-11-22 | George Porter | Wikipedia audio article | 5:30 | 19 | |
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| 2018-11-22 | Harald zur Hausen | Wikipedia audio article | 7:04 | 21 | |
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| 2018-11-22 | Edward Adelbert Doisy | Wikipedia audio article | 3:08 | 59 | |
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| 2018-11-22 | Daniel Bovet | Wikipedia audio article | 2:09 | 88 | |
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| 2018-11-22 | Karl von Frisch | Wikipedia audio article | 17:55 | 2,316 | |
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| 2018-11-22 | Hans Adolf Krebs | Wikipedia audio article | 15:57 | 4,413 | |
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| 2018-11-22 | Tu Youyou | Wikipedia audio article | 12:03 | 95 | |
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| 2018-11-22 | Willem Einthoven | Wikipedia audio article | 5:05 | 192 | |
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