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  Yellowstone park was americas first national park
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  The Anthracite coal mine strike was a strike by the workers of the America.
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  The Elkins act is an US law that amended the interstate commerce act of 1887.
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  The Jungle was a novel written by the American Journalist anxd novelist Upton SInclair.
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  A bill that fortified the powers of the interstate commerce commision
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  Meat inspection made sure that the food was slaughtered and processed under sanitary conditions.