The first major revolt of the 1848-1849 German revolutions began in Vienna.
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Apollo 9 and its crew returned to Earth after a 10-day mission orbiting Earth.
The US army enlisted its first female colonel, Julia Flikke.
Pope Leo XII renewed the prohibition of members of the Catholic Church from joining the Freemasons.
Bill Gates left the Microsoft board after founding the company four decades prior.
Itza, the last Mayan kingdom, was conquered by Spanish forces.
