President of the United States of America

The President of the United States is the Head of State and Head of Government of the United States of America. Since 1789, fifty-five terms have been served by forty-four presidents.

=List of Presidents of the United States=

1789-1797: George Washington 1797-1801: John Adams 1801-1809: Thomas Jefferson 1809-1817: James Madison 1817-1825: James Monroe 1825-1829: John Quincy Adams 1829-1837: Andrew Jackson 1837-1841: Martin Van Buren 1841:     William Henry Harrison 1841-1845: John Tyler 1845-1849: James K. Polk 1849-1850: Zachary Taylor 1850-1853: Millard Fillmore 1853-1857: Franklin Pierce 1857-1861: James Buchanan 1861-1865: Abraham Lincoln 1865-1869: Andrew Johnson 1869-1877: Ulysses S. Grant 1877-1881: Rutherford B. Hayes 1881:     James A. Garfield 1881-1885: Chester A. Arthur 1885-1889: Grover Cleveland 1889-1893: Benjamin Harrison 1893-1897: Grover Cleveland 1897-1901: William McKinley 1901-1909: Theodore Roosevelt 1909-1913: William Howard Taft 1913-1921: Woodrow Wilson 1921-1923: Warren G. Harding 1923-1929: Calvin Coolidge 1929-1933: Herbert Hoover 1933-1945: Franklin D. Roosevelt 1945-1953: Harry S. Truman 1953-1961: Dwight D. Eisenhower 1961-1963: John F. Kennedy 1963-1969: Lyndon B. Johnson 1969-1974: Richard Nixon 1974-1977: Gerald Ford 1977-1981: Jimmy Carter 1981-1989: Ronald Reagan 1989-1993: George H. W. Bush 1993-2001: Bill Clinton 2001-2009: George W. Bush 2009-   : Barack Obama (incumbent)