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.
The Stockholm Bloodbath came to an end when the final executions took place.
Theodore Roosevelt became the first US president to visit another country while in office, visiting Puerto Rico and Panama.
Facebook's parent company, Meta, laid off 11,000 employees amid a weak advertising market.
King Edward VII was gifted with The Cullinan Diamond (the world's largest diamond) on his 60th birthday.
