The first manned Moon voyage, the Apollo 8, launched with Frank Borman, Jim Lovell, and William Anders.
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Elton John and his partner David Furnish registered their civil partnership at Windsor Town Hall on the first day civil partnerships could legally be performed in England.
The first full-length animated feature film, 'Snow White and the Seven Dwarfs,' premiered.
The first crossword puzzle was printed.
Psy's music video for 'Gangnam Style' surpassed one billion views on YouTube, becoming the first video to do so in the website's history.
John Wayne Gacy was arrested.