Linkin Park singer Chester Bennington committed suicide aged 41.
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America's robot spacecraft, the Viking I, successfully landed on Mars.
The USS Constitution set sail for the first time in 116 years.
The people of Colombia declared their independence from Spain.
Single 'In-a-gadda-da-vida' by Iron Butterfly became the first heavy metal song to hit the charts.
Apollo 11 landed on the Moon with astronauts Neil Armstrong, Buzz Aldrin, and Michael Collins.
