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15:28 Social Studies America's native prisoners of war - Aaron Huey Lesson duration 15:28 124,760 Views
04:08 History Urbanization and the evolution of cities across 10,000 years Lesson duration 04:08 2,732,254 Views
04:13 History Why do Americans and Canadians celebrate Labor Day? Lesson duration 04:13 598,576 Views
18:46 Business & Economics The walk from "no" to "yes" - William Ury Lesson duration 18:46 36,711 Views
17:33 Sociology The moral dangers of non-lethal weapons - Stephen Coleman Lesson duration 17:33 16,283 Views
18:52 Technology Behind the Great Firewall of China - Michael Anti Lesson duration 18:52 32,203 Views
03:38 Geography How do you decide where to go in a zombie apocalypse? Lesson duration 03:38 3,161,331 Views
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09:38 Consciousness, Sensation and Perception Looks aren't everything. Believe me, I'm a model - Cameron Russell Lesson duration 09:38 692,078 Views
17:04 Global Economics Actually, the world isn't flat - Pankaj Ghemawat Lesson duration 17:04 106,044 Views
04:27 Data Analysis & Probability The mathematics of history - Jean-Baptiste Michel Lesson duration 04:27 37,763 Views
