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  Originally referred to as the World War or the Great War before the start of WW II.
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  The National Council for the Social Studies supports social studies education in the schools.
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  Began in the US after the stock market crash on October 29, 1929, known as Black Tuesday.
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  World War II began on September 1, 1939 when Germany invaded Poland.
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  Pearl Harbor VideoThis surprise Japanese attack on Pearl Harbor led the U.S. to enter World War II.
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  South Korea was supported by the US.
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  The Civil Rights Act of 1961 ended discrimination against race, color, religion, or national origin.
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  Also known as Sputnik 1, which was a Russian satellite.
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  The US used helicopters very heavily in this war
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  Yuri Gagarin was the first man to enter space and orbit the earth.
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  Neil Armstrong landed on the moon and said, "That's one small step for man, one giant leap for mankind."
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  The watergate scandal led to the resignation of President Richard Nixon
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  The No Child Left Nehind Act was singed into Law by President George W. Bush in 2002.
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  Four airplanes crashed in the north and south trade center towers, the Pentagon, and a field in Pennsylvania intended for Washinton DC.