September 23 in History

Significant events that happened on this day.

Today

Historical Events

1999

NASA lost contact with the Mars Climate Orbiter because one team used metric and another used imperial units

The $125 million spacecraft burned up in Mars' atmosphere due to a navigation error. Lockheed Martin engineers used pounds of force while NASA used ne...

1973

Former Argentine president Juan Perón returned to power after an 18-year exile

At age 77, Perón won the presidency with 62% of the vote, the largest margin in Argentine history. His third wife Isabel became vice president, making...

1965

The Beatles' cartoon series premiered on ABC television

The animated series featured cartoon versions of the Fab Four in wild adventures, with real Beatles songs in each episode. Though the band members the...

1952

Richard Nixon delivered his famous 'Checkers speech' on national television

Major

Facing accusations of financial impropriety, the VP candidate defended himself and mentioned his family's dog Checkers, the one gift he refused to ret...

1949

President Truman announced that the Soviet Union had successfully tested an atomic bomb

The USSR's first nuclear test had actually occurred weeks earlier on August 29th, but was announced publicly on this date. The revelation ended Americ...

1938

A massive hurricane struck Long Island and New England without warning, killing over 700 people

Major

The Great New England Hurricane moved so quickly that forecasters couldn't issue adequate warnings. Winds exceeded 186 mph and storm surges reached 17...

1912

Mack Sennett's first Keystone Cops comedy film was released

The silent film introduced the bumbling, incompetent police force that became comedy icons. The Keystone Cops' slapstick chases and pratfalls influenc...

1889

Nintendo was founded in Kyoto, Japan as a playing card company

Fusajiro Yamauchi established Nintendo Koppai to produce handmade hanafuda playing cards. The company remained in the card business for decades before...

1875

Billy the Kid was arrested for the first time at age 15 for stealing laundry

The future outlaw's crime spree began humbly in Silver City, New Mexico when he stole clothing from a Chinese laundry. He escaped from jail two days l...

1846

Astronomers discovered that Uranus had a moon, which they named Ariel

William Lassell spotted this satellite of Uranus on the same night Neptune was discovered, making it an extraordinary day for planetary astronomy. Ari...

1846

The planet Neptune was discovered by German astronomer Johann Gottfried Galle

Major

Using mathematical predictions made by Urbain Le Verrier, Galle spotted Neptune just one degree from its predicted position. This was the first planet...

1806

The Lewis and Clark Expedition returned to St. Louis after exploring the western United States

Major

After two years, four months, and approximately 8,000 miles, the Corps of Discovery completed their journey to the Pacific and back. They were welcome...

1779

John Paul Jones declared 'I have not yet begun to fight' during a naval battle

Major

When the British commander demanded his surrender during the Battle of Flamborough Head, the American naval commander gave this defiant response from...

1642

Harvard University held its first commencement ceremony

Just six years after its founding, Harvard graduated its first class of nine students. The ceremony was conducted entirely in Latin, as was customary...

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