The Skylab 4 mission was launched by NASA, taking a crew of three astronauts to the US space station.
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Oklahoma became the 46th state to join the United States of America.
Call of Duty: Black Ops 2 earned a staggering $500 million within 24 hours of release.
The Model M Postage Meter was put into commercial use.
Nineteen countries vowed to gradually phase out coal at the United Nations Summit in Bonn, Germany.
The Twilight Saga: New Moon premiered in Los Angeles.
