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Period: to
United States of America
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Declaration of Independence
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U.S. Constitution
Philadelphia Convention -
Bill of Rights established
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Period: to
Civil War
War begins with attack on Fort Sumter in Charleston Harbor SC.
ends with surrender by General Lee -
Transcontinental Railroad
unites east coast with west coast -
Period: to
Great Depression
started with stock market crash and ended with new deal -
U.S. enters World War II
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America enters nuclear age
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Period: to
Cold War
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U.S. lands on the moon
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Terrorist attack on World Trade Centers in New York