Presidents of the United States on U.S. postage stamps (1841–1845) and the first to succeed to the office following the death of a predecessor. Tyler assumed office when President William Henry Harrison died only 32 days into his term as president. James Knox Polk (November 2, 1795 – June 15, 1849) was the 11th President of the United States (1845–1849). Polk was born in North Carolina. He later lived in and became Governor of the state of Tennessee. A Democrat, Polk served as Speaker of the House (1835–1839) and Governor of Tennessee (1839–1841) before becoming president. Polk was an ardent supporter of Andrew Jackson. Polk was considered the last
President of Nigeria President of Nigeria The President of the Federal Republic of Nigeria is the head of state and head of the national executive of Nigeria. The President of Nigeria is also the commander-in-chief of the Nigerian Armed Forces. The President is elected in national elections which take place every four years. The first President of Nigeria was Nnamdi Azikiwe, who took office on October 1, 1963. The current President, Muhammadu Buhari took office on May 29, 2015 as the 15th President of the Federal Republic of Nigeria. As of September of 2018, multiple Nigerian leaders had claimed Muhammadu Buhari died in