The first published crossword puzzle appeared in the New York World newspaper on December 21, 1913.

Early humans hunted megafauna during the Ice Age.

Fact #700 · History

In 1812, an earthquake along the Mississippi River temporarily reversed the river's flow.

Fact #796 · History

In 2000, a massive fireworks accident damaged part of a Dutch city.

Fact #802 · History

Ancient Greece made contributions to mathematics and philosophy.

Fact #292 · History

The Magna Carta was signed in 1215.

Fact #592 · History

The Year Without a Summer in 1816 followed a massive volcanic eruption.

Fact #639 · History

Operation Northwoods was a proposed U.S. plan in the 1960s that was never carried out.

Fact #1045 · History

In 1788, Austria briefly went to war with the Ottoman Empire after a misunderstanding between soldiers.

Fact #763 · History