NASA launched the Apollo 4 test spacecraft to test the Saturn V rocket for the first time.
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Holy Emperor Louis IV of Bavaria defeated Frederick I of Austria during the Battle of Gammelsdorf.
Piero the Unfortunate was stripped of his title of Lord of Florence, Italy, and exiled.
King Edward VII was gifted with The Cullinan Diamond (the world's largest diamond) on his 60th birthday.
The Berlin Wall began to fall.
Theodore Roosevelt became the first US president to visit another country while in office, visiting Puerto Rico and Panama.