The opera “Die Entführung aus dem Serail” by Wolfgang Amadeus Mozart premiered in Vienna, Austria.
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Twelve new moons were discovered in Jupiter's orbit, bringing the planet's total number of moons to 79.
Martin Luther had a public debate with theologian Johann Eck at Pleissenburg Castle in Leipzig.
Father Junipero Serra started his first mission in California named 'Mission San Diego.'
The Ukrainian Soviet Socialist Republic's Parliament declared sovereignty over Ukrainian territories.
NASA launched Apollo 11 from the Kennedy Space Center.
