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05:07 History Who built Great Zimbabwe? And why? Lesson duration 05:07 Manage Library 1,118,965 Views
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05:31 Engineering Why don't perpetual motion machines ever work? Lesson duration 05:31 Manage Library 16,326,084 Views
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01:51 Social Studies How the popsicle was invented | Moments of Vision 11 Lesson duration 01:51 Manage Library 452,394 Views
05:10 Literature Why should you read Tolstoy's "War and Peace"? Lesson duration 05:10 Manage Library 5,182,497 Views
05:06 History How did Dracula become the world's most famous vampire? Lesson duration 05:06 Manage Library 3,842,028 Views
01:57 Design How blue jeans were invented | Moments of Vision 10 Lesson duration 01:57 Manage Library 472,452 Views
05:53 History How Magellan circumnavigated the globe Lesson duration 05:53 Manage Library 1,688,283 Views
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04:44 History Does "The Wonderful Wizard of Oz" have a hidden message? Lesson duration 04:44 Manage Library 1,509,425 Views
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03:37 History The exceptional life of Benjamin Banneker Lesson duration 03:37 Manage Library 683,284 Views