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Early American History
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Civil War/Reconstruction
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The Glided Age
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The Progressive Era
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Imperalism
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World War I
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Roaring Twenties
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Great Depression
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World War II
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United Nations Formed
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Early Cold War
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22nd Amendment
prohibits anyone who has been elected president twice from being elected again -
Truman Doctrine
U.S. policy that gave military and economic aid to countries threatened by communism -
Berlin Aircraft
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Marshall Plan
program to help European countries rebuild after World War II -
NATO established
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Korean War
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Civil Rights Era
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Rosenbergs trial
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First H-Bomb detonated by the United States
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Vietnam War
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Jonas Salk invents the Polio Vaccine
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USSR launches Sputnik
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End of the Cold War
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1990s-21st Century