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  The Polio Vaccine is released.
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  Rosa Parks gets arrested for refusing to give up her seat when a white man asks.
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  Eisenhower is elected as president for his second term.
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  The first nuclear power plant is created.
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  United States launches their first satellite.
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  Trained exiles from Cuba land at the Bay of Pigs trying to overthrow it.
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  The United States bombs North Vietnam for the first time.
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  Martin Luther King Jr is assassinated.
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  Nixon gets reelected when he beats Senator George McGovern.