Northern Somalia declared its independence, becoming the unrecognized de facto Republic of Somaliland.
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The Crusaders lost control of the city of Acre, the Kingdom of Jerusalem's last bastion, after a fourteen-day siege.
Apollo 10 was launched from the John F. Kennedy Space Center on a mission to the Moon.
The Worms massacre began.
Chris Cornell, American musician of Soundgarden and Audioslave, committed suicide at age 52 by hanging.
The Republican Party nominated Abraham Lincoln for president at the 1860 Republican National Convention.
