The Skylab 4 mission was launched by NASA, taking a crew of three astronauts to the US space station.
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The first edition of America's oldest newspaper, The New York Evening Post, was published.
The city of Havana, Cuba, celebrated its 500th birthday.
Nineteen countries vowed to gradually phase out coal at the United Nations Summit in Bonn, Germany.
American singer Mario released his hit single 'Let Me Love You.'
Queen Elizabeth II had hip surgery at King Edward VII Hospital.
