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In 1898, Roosevelt recruited a diverse group of cowboys, miners, law enforcement officials, and Native Americans to join the Rough Riders. They participated in the capture of Kettle Hill, and then charged across a valley to assist in the seizure of San Juan Ridge, the highest point of which is San Juan Hill.
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On September 14, 1901, Teddy Roosevelt was named president for the first time. Roosevelt took office as vice president in 1901 and assumed the presidency at age 42 after McKinley was assassinated the following September. Teddy was named the youngest person to become president of the united states.
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On May 12, 1902, Miners in Pennsylvania's coalfields went on strike for higher wages and shorter workdays. The strike threatened to shut down the winter fuel supply to major American cities. -
The Reclamation Act of 1902, required that water users repay construction costs from which they received benefits. ct allowed the government to apply federal funds to projects intended to transform arid areas in twenty Western states into land that could be farmed through irrigation projects.
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On February 19, 1903, the Elkins Act prohibited rebates and made the railroad corporation providing the rebate, as well as the shipper receiving it, liable under the law.
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In 1904, Roosevelt was the first and only President to serve more than two terms. The amendment was passed by Congress in 1947, and was ratified by the states on 27 February 1951. Truman served nearly all of Roosevelt's unexpired fourth term and then was elected President once, serving his own four-year term.
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Roosevelt's Department of Justice prosecuted the Northern Securities Company for violating the Sherman Act. In 1904, the Supreme Court agreed with the administration's position, and ordered the Northern Securities company dissolved.
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On June 30, 1906, The Meat Inspection Act prohibited the sale of adulterated or misbranded livestock and derived products as food and ensured sanitary slaughtering and processing of livestock.
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The Pure Food and Drug Act of 1906 prohibited the sale of misbranded or adulterated food and drugs in interstate commerce and laid a foundation for the nation's first consumer protection agency (The FDA-Food and Drug Administration)
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In 1906, the state-controlled Yosemite Valley and Mariposa Grove came under federal jurisdiction with the rest of the park.
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In 1909, Teddy Roosevelt went on an expedition to Africa. The expedition collected around 11,400 animal specimens which took Smithsonian naturalists eight years to catalog.
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The Progressive Party was a third party (often referred to as the "Bull Moose Party") founded in 1912 by Theodore Roosevelt after he lost to William Howard Taft in the Republican primary.