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The telephone was work done by many individuals, The electric transmission of signals set the fundamental basis for the invention of the telephone.
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Karl Benz was the German mechanical engineer who designed, patented and in 1885 built the world's first practical automobile to be powered by a gasoline engine.
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After the sinking of the Titanic is when radio communication became popular. Ships realized how they needed to be able to communicate with land.
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the movement of 2 million African Americans out of the Southern United States to the Midwest, Northeast and West from 1910 to 1930.African Americans migrated to escape racism and to seek jobs inindustrial cities.
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created job opportunities for women and African americans. it helped U.S. economy because we supplied both sides with military equipment.
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prohibition
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This gave women the right to vote.
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reduced immigration to 3% of each ethnicity already living in the U.S.
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reduced immigration to 2% of each ethnicity in the U.S.
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The fundamental principles of television were initially developed using electromechanical methods to scan, transmit and reproduce an image.
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Black Thursday was the beginning of the stock market crash. It was the clue that there was gonna be a huge stock market crash.
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Black Tuesday was the fourth day of the stock market crash of 1929. It was worst day in the history of the New York Stock Exchange because it signaled the start of the Great Depression of 1929.
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Hoover Dam was a concrete arch-gravity dam in the Black Canyon of the Colorado River, on the border between the US states of Arizona and Nevada.
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Franklin Roosevelt was the 32nd president of the U.S.
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On March 3, 1933, Washington Governor Clarence Martin closed all Washington State banks and declared a three-day “bank holiday,” working with other state governments to pushing for the passage of a federally mandated bank holiday.
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President Roosevelt signed the proclamation ending Prohibition.
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The computer was invented after the calculator was invented. The invention of the calculator was worked on for a while before they were able to work on the computer.
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The GI Bill of Rights was created to help out veterans returning from WWI. It provided for college or vocational education as well as one year of unemployment compensation. It also provided loans for returning veterans to buy homes and start businesses.
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It was a battle between the Soviet Union and the U.S. It was about the system of government.
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a flying-saucer enthusiast named Walter Frederick Morrison designed a saucer-like disk for playing catch. It was produced by a company named Wham-O.
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The Internet began as a computer network of ARPA (ARPAnet) that linked computer networks at several universities and research laboratories in the United States.