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Theodore Roosevelt is born in New York
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The state-controlled Yosemite Valley and Mariposa Grove came under federal jurisdiction with the rest of the park.
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Theodore Roosevelt wins first full term as President
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Theodore Roosevelt was named president after the assassination of President McKinley.
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President Theodore Roosevelt's executive order designated the island as the nation's first national wildlife refuge for the protection of nesting birds
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The Elkins Act gave federal courts the power to end rate discrimination.
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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 Food and Drug Administration (FDA).
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The Devil's Tower is the U.S.'s first national monument by President Roosevelt.
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Teddy Roosevelt and his expeditionary party leave New York for Africa.
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The Progressive Party was popularly nicknamed the "Bull Moose Party" when Roosevelt boasted that he felt "strong as a bull moose" after losing the Republican nomination.
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Disruptions of oil supplies from the region created difficulties for the nations that relied on energy exports from the region.