The US army enlisted its first female colonel, Julia Flikke.
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Apollo 9 and its crew returned to Earth after a 10-day mission orbiting Earth.
Itza, the last Mayan kingdom, was conquered by Spanish forces.
American baseball catcher Wilbert Robinson tried to claim a record by catching a ball dropped from a plane 525 feet above him.
Luciano Pavarotti's final opera took place at New York Metropolitan Opera.
Astronomer William Herschel first observed Uranus.
