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North Korea backed with the Soviet Union and invaded South Korea. Later the US air force and The Navy was sent to the peninsula.
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forces retreat south toward the 38th parallel when Chinese communist forces open a counteroffensive in the Korean War
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His action to stop steel mills in April were ruled illegal by the US Supreme Court.
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Fighting ceases in the Korean War.
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The first large scale vaccination of children against polio begins in Pittsburgh, Pennsylvania
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Rosa Parks would refuse to give her seat up on the bus to a white person.
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It would fail when exploding on the launch pad.
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Nikita Khrushchev at his farm in Gettysburg, Pennsylvania during the first visit of any Soviet Union leader to the United States.