1852
Uncle Sam makes his debut
"Uncle Sam" cartoon appeared for the first time in N.Y. Lantern weekly.
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1639
Cambridge College was renamed Harvard University.
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1781
The German-born English astronomer Sir William Herschel discovered the planet Georgium Sidus, later known as Uranus.
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1868
The Senate began President Andrew Johnson's impeachment trial.
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1906
Suffragist Susan B. Anthony died.
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1925
Tennessee passed a bill prohibiting the teaching of evolution in public schools.
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1930
Clyde W. Tombaugh announced the discovery of the planet Pluto.
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1972
Britain and China resumed full diplomatic relations after 22 years; Britain withdrew its consulate from Taiwan.
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1996
A man shot dead 16 children and a woman teacher in a school in Dunblane, Scotland. He then shot himself.
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2012
The Encyclopaedia Britannica discontinued its print edition after 244 years.
