Theodore (Teddy) Roosevelt, Jr., (October 27, 1858 – January 6, 1919), also known as T.R. and to the public (but never to friends and intimates) as Teddy. Per Roosevelt himself, his last name is pronounced “Ro-sa-velt.”[2] He was the 26th President of the United States (1901-09), and a leader of the Republican Party and of the Progressive Movement. He served in many roles including Governor of New York, historian, naturalist, explorer, author, and soldier. Roosevelt is most famous for his personality: his energy, his vast range of interests and achievements, his model of masculinity, and his “cowboy” persona.
As Assistant Secretary of the U.S. Navy, he prepared for and advocated war with Spain in 1898. He organized and helped command the 1st U.S. Volunteer Cavalry Regiment, the Rough Riders, during the Spanish-American War. Returning to New York as a war hero, he was elected Republican governor in 1898. He was a professional historian, a lawyer, a naturalist and explorer of the Amazon Basin; his 35 books3 include works on outdoor life, natural history, the American frontier, political history, naval history, and his autobiography.
In 1901, as Vice President, Roosevelt succeeded President William McKinley after an assassination. Roosevelt was a Progressive reformer who sought to move the dominant Republican Party into the Progressive camp. He distrusted wealthy businessmen and dissolved 40 monopolistic corporations as a “trust buster”. He was clear, however, to show that he did not disagree with trusts and capitalism in principle but was only against their corrupt, illegal practices. His “Square Deal” promised a fair shake for both the average citizen, including regulation of railroad rates and pure foods and drugs, and the businessmen. As an outdoorsman, he promoted the conservation movement, emphasizing efficient use of natural resources. After 1906, he moved left, attacking big business and suggesting the courts were biased against labor unions. In 1910, he broke with his friend and anointed successor William Howard Taft, but lost the Republican nomination to Taft and ran in the 1912 election on his own one-time Bull Moose ticket. Roosevelt lost but pulled so many Progressives out of the Republican Party that Democrat Woodrow Wilson won in 1912, and the conservative faction took control of the Republican Party for the next two decades.
See entire Wikipedia Article: Roosevelt