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The US drops an atomic bomb on Hiroshima, Japan.
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World War II ends.
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The United Nations was established.
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Philippines gained fulled independence from the US.
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Truman Doctrine: prevent Soviet expansion during the Cold War
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The Marshall Plan, which gave aid to European countries post-war to help rebuild their economies, came into effect.
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Truman's second inaguration.
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Period: to
Korean War
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Twenty-Second Amendment: limits the president to two terms.
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Puerto Rico becomes a UC commonwealth.
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Dwight Eisenhower is inaugurated as the US's 34th president.
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Brown v. Board of Education of Topeka: declared state laws allowing segregation in schools to be unconstitutional.
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Period: to
Vietnam War
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Martin Luther King Jr. delivers his "I have a dream..." speech.
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President Kennedy is assassinated.
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President Johnson signs the Civil Rights Act.
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Martin Luther King Jr. is assassinated.
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Nixon is inaugurated.
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Jimmy Carter is inaugurated.