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12:00 Social Studies What I learned as a prisoner in North Korea - Euna Lee Lesson duration 12:00 3,008,974 Views
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04:53 History What really happened to the Library of Alexandria? Lesson duration 04:53 2,981,038 Views
05:20 Social Studies How the Normans changed the history of Europe Lesson duration 05:20 3,668,054 Views
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