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A sculptor's rendering of the hominid Australopithecus afarensis ("Lucy").

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How the ‘Lucy’ Fossil Rewrote the Story of Human Origins

The stunning 1974 discovery offered proof that ancient hominins were walking around on two feet some 3.2 million years ago.

When John Adams Signed a Law to Authorize Deportations and Jail Critics

The 1798 Alien and Sedition Acts called for deportation of people from ‘hostile’ nations and made it a crime to criticize the government.

The Army General Who Invented Muzak

Eisenhower installed ‘elevator music’ in the White House and NASA used it in astronaut training, but its inventor came up with many other, more impactful inventions in his lifetime.

7 ‘October Surprises’ That Disrupted US Presidential Elections

When scandalous news emerged in the final weeks of these presidential campaigns, election outcomes were at stake.