<Tr> <Td> <Ul> <Li> </Li> <Li> </Li> <Li> </Li> </Ul> </Td> </Tr> <Ul> <Li> </Li> <Li> </Li> <Li> </Li> </Ul> <P> Theodore Roosevelt Jr. (/ ˈroʊzəvɛlt / ROH - zə - velt; October 27, 1858--January 6, 1919) was an American statesman, author, explorer, soldier, and naturalist, who served as the 26th President of the United States from 1901 to 1909 . He also served as the 25th Vice President of the United States from March to September 1901 and as the 33rd Governor of New York from 1899 to 1900 . As a leader of the Republican Party during this time, he became a driving force for the Progressive Era in the United States in the early 20th century . His face is depicted on Mount Rushmore, alongside those of George Washington, Thomas Jefferson, and Abraham Lincoln . </P> <P> Roosevelt was born a sickly child with debilitating asthma, but he successfully overcame his physical health problems by embracing a strenuous lifestyle . He integrated his exuberant personality, vast range of interests, and world - famous achievements into a "cowboy" persona defined by robust masculinity . Home - schooled, he began a lifelong naturalist avocation before attending Harvard College . His book, The Naval War of 1812 (1882), established his reputation as both a learned historian and as a popular writer . Upon entering politics, he became the leader of the reform faction of Republicans in New York's state legislature . Following the near - simultaneous deaths of his wife and mother, he escaped to a cattle ranch in the Dakotas . Roosevelt served as Assistant Secretary of the Navy under President William McKinley, but resigned from that post to lead the Rough Riders during the Spanish--American War . Returning a war hero, he was elected Governor of New York in 1898 . After the death of Vice President Garret Hobart, the New York state party leadership convinced McKinley to accept Roosevelt as his running mate in the 1900 election . Roosevelt campaigned vigorously and the McKinley - Roosevelt ticket won a landslide victory based on a platform of peace, prosperity, and conservatism . </P>

Who served as president of the united states from 1901 to 1909