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In 1848 James Marshall found gold and unleashed a massive migration from around the world.

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In 1978 over 900 people died in the largest mass murder-suicide in history.

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Annie Oakley won fame and fortune as the little lady from Ohio who never missed a shot.

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Airs Tuesday, May 7, 2013 at 8:00 p.m. ET/PT. Check your local listings.

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Theirs was a rivalry that would draw American and Germany inching closer to war.

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In May of 1942, thousands of American soldiers began the building of the Alaska Highway.

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An over-worked horse and a broken-down jockey capture the nation's imagination.

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For nearly half a century, Emma Goldman was the most controversial woman in America.

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Tupperware! re-examines assumptions about American culture in the 1950s.

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Emmett Till's murder and the acquittal of his killers mobilized the Civil Rights Movement.

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The story behind the world's largest sculpture and the shrine of democracy.

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The marriage of Abraham and Mary Lincoln was long and turbulent and knew many trials.