Thomas Jefferson was a Founding Father of the United States who wrote the Declaration of Independence. As U.S. president, he completed the Louisiana Purchase.

• Thomas Jefferson was an American statesman, diplomat, lawyer, architect, and Founding Father who served as the third president of the United States from 1801 to 1809. Previously, he had served as the second vice president of the United States from 1797 to 1801.
• Born: April 13, 1743, Shadwell, VA
• Died: July 4, 1826, Monticello, VA
• Presidential term: March 4, 1801 – March 4, 1809
• Spouse: Martha Jefferson (m. 1772–1782)
• Children: Martha Jefferson Randolph, Madison Hemings
• Vice presidents: Aaron Burr (1801–1805), George Clinton (1805–1809)
• First president to be inaugurated in Washington, D.C.
• First president inaugurated in the 19th century.
• First president whose inauguration was not attended by his immediate predecessor.
• First president to live a full presidential term in the White House.
• First president elected as a Democratic-Republican.
• First president to have previously been a governor.
• First president to have been ambassador to France.
• First president to have previously served as secretary of state.
• First president to defeat the man (Adams) whom he had previously lost to in a presidential election.
• First president to have been widowed prior to his inauguration.
• First president whose election was decided in the House of Representatives.
• First president to cite the doctrine of executive privilege.
• First president to have a vice president elected under the 12th Amendment. Originally the runner-up in the presidential election was named vice president.
• First president to have two vice presidents.
• First president whose vice president was older than him.
• First president to be a deist.
• First president to win election after having been previously defeated.
• First president who died on Independence Day (Along with his predecessor John Adams).
• First president to be survived by his predecessor as president.
• First president to serve as rector of the University of Virginia.