Astronomer William Herschel first observed Uranus.
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Earmuffs were patented.
Luciano Pavarotti's final opera took place at New York Metropolitan Opera.
Pope Leo XII renewed the prohibition of members of the Catholic Church from joining the Freemasons.
Itza, the last Mayan kingdom, was conquered by Spanish forces.
The first major revolt of the 1848-1849 German revolutions began in Vienna.
