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Theodore Roosevelt was born in New York City on October 27, 1858 -
Theodore Roosevelt became President of the United States following the assassination of William McKinley on September 6, 1901. Roosevelt was sworn in on September 14, 1901 -
The Anthracite Coal Strike by the United Mine Workers of America led to an energy crisis. President Roosevelt intervened, leading to a settlement that was a landmark in federal involvement in labor disputes. -
The Elkins Act was passed to amend the Interstate Commerce Act, targeting railroad monopolies by prohibiting rebates and discriminatory rate practices. It authorized the ICC to impose heavy fines on railroads offering rebates and shippers accepting them. -
President Theodore Roosevelt established Pelican Island in Florida as the first National Wildlife Refuge to protect birds from extinction due to plume hunting. -
Theodore Roosevelt won his first full term as President of the United States, defeating Alton B. Parker. -
The Pure Food and Drug Act was enacted to ban interstate traffic in adulterated or mislabeled food and drug products. It required active ingredients to be placed on labels and led to the creation of the Food and Drug Administration (FDA) -
Yosemite Valley and the Mariposa Grove came under federal jurisdiction, consolidating it within Yosemite National Park. -
President Theodore Roosevelt proclaimed Devils Tower in Wyoming as the first national monument in the U.S. under the Antiquities Act. This action preserved the unique geological formation and recognized its significance. -
Shortly after his presidency ended on March 4, 1909, Theodore Roosevelt set sail for a Smithsonian-sponsored expedition to Africa. The purpose was to collect specimens for the National Museum of Natural History. -
Theodore Roosevelt ran for president in 1912 as the nominee of the Progressive Party (Bull Moose Party) after failing to secure the Republican nomination. He lost to Woodrow Wilson.