On this day in 1983, the first man-made object left the Solar System. It was the Pioneer 10 space probe, ...
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1983: Pioneer 10: The First Man-Made Object to Leave the Solar System
1983: Pioneer 10: The First Man-Made Object to Leave the Solar System
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1955: The Mir Mine – Largest Diamond Mine in the USSR
1955: The Mir Mine – Largest Diamond Mine in the USSR
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1525: Martin Luther Marries a Former Nun
1525: Martin Luther Marries a Former Nun
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1231: St. Anthony of Padua Dies
1231: St. Anthony of Padua Dies
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1986: Olsen Twins Born
1986: Olsen Twins Born