0483 - St. Felix III began his reign as Pope.
0607 - The 12th recorded passage of Halley's Comet occurred.
1519 - Cortez landed in Mexico.
1781 - Sir William Herschel discovered the planet Uranus.
1861 - Jefferson Davis signed a bill authorizing slaves to be used as soldiers for the Confederacy.
1877 - Chester Greenwood patented the earmuff.
1881 - Tsar Alexander II was assassinated when a bomb was thrown at him near his palace.
1902 - In Poland, schools were shut down across the country when students refused to sing the Russian hymn "God Protect the Czar."
1908 - The people of Jerusalem saw an automobile for the first time. The owner was Charles Glidden of Boston.
1915 - The Germans repelled a British expeditionary force attack in France.
1928 - The St. Francis Dam in California burst and killing 400 people.
1930 - It was announced that the planet Pluto had been discovered by scientist Clyde Tombaugh at the Lowell Observatory.
1935 - Three-thousand-year-old archives were found in Jerusalem confirming some biblical history.
1940 - The war between Russia and Finland ended with the signing of a treaty in Moscow.
1941 - Adolf Hitler issued an edict calling for an invasion of the U.S.S.R.
1946 - Reports from Iran indicated that Soviet tanks units were stationed 20 miles from Tehran.
1951 - The comic strip "Dennis the Menace" appeared for the first time in newspapers across the country.
1969 - The Apollo 9 astronauts returned to Earth after the conclusion of a mission that included the successful testing of the Lunar Module.
1970 - Digital Equipment Corp. introduced the PDP-11 minicomputer.
1990 - The U.S. lifted economic sanctions against Nicaragua.
1992 - An earthquake in eastern Turkey killed more than 1,000.
1995 - The first United Nations World Summit on Social Development concluded in Copenhagen, Denmark.
1997 - Sister Nirmala was chosen by India's Missionaries of Charity to succeed Mother Teresa as leader of the Catholic order.
2003 - Japan sent a destroyer to the Sea of Japan amid reports that North Korea was planning to test an intermediate-range ballistic missile.
2003 - A report in the journal "Nature" reported that scientists had found 350,000-year-old human footprints in Italy. The 56 prints were made by three early, upright-walking humans that were descending the side of a volcano.