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The Hoover Dam is completed on the colorado river in Arizona in 1935, the construction began in 1931.
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Due to demand started by the automobile, 1950 became the first year that petroleum was the most used in the US.
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The reactor was built to be useful for electricity for the first time. It started off barely able to powert a simple string of four, 100-watt light bulbs.
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The Congress passed the energy act in 1954 permitting the wide use of atomic energy for such peaceful purposes.
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The oil production in the lower 48 states reaches the highest peak they have had in 1970, peaking at 9.4 million barrels per day.
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The US department of Energy Launches the SERIin Colorado, which was the first facility dedicated to harnessing power from the sun.
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The US windpower installed the World's first wind farm, consisting of 20 wind turbines.
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This was the first time in history that the Unites States imports more than it produces.
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On this day President Obama annouced the largest single energy grid modernization investment in U.S. history.
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As the war was going on in the 1940's, Many physicists in Europe and America came together to understand that a uranium atom split by a neutron would cause a chain reaction.
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