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04:40 Social Studies The electrifying speeches of Sojourner Truth Lesson duration 04:40 544,927 Views
05:38 Design, Engineering & Technology How the world's longest underwater tunnel was built Lesson duration 05:38 3,796,887 Views
05:20 Social Studies How the Normans changed the history of Europe Lesson duration 05:20 3,297,606 Views
03:49 Literature & Language The Irish myth of the Giant's Causeway Lesson duration 03:49 1,812,844 Views
04:58 Social Studies How the world's first metro system was built Lesson duration 04:58 1,848,438 Views