Theodore Roosevelt (October 27, 1858 – January 6, 1919) was the 26th president of the United States from 1901 to 1909. He had previously been the 33rd governor of New York, from 1899 to 1900, and then the 25th vice president of the United States, from March to September a leader of the Republican Party, he became a driving force for the Progressive Era in the United States in the ...