American actress Katherine Hepburn had her first stage performance in New York City, where she played in “Night Hostess.”
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The Greeks defeated the Persians in the Battle of Marathon.
French astronomer Charles Messier accidentally discovered the Crab Nebula while looking for the Halley comet.
Crosshatch drawings discovered on a 1.5-inch piece of stone in Blombos Cave in South Africa were found to be the oldest known human drawing at 73,000 years old.
17,000-year-old cave art was discovered in France.
Lady Gaga wore a full outfit made of meat for the MTV Video Music Awards.