Title: 3rd United States Congress
Content: President: John Adams (P) ; President pro tempore: John Langdon (P), until December 2, 1793 ; Ralph Izard (P), May 31, 1794 – November 9, 1794 ; Henry Tazewell (P), from February 20, 1795 
Title: Thomas Jefferson: Author of America
Content:  Thomas Jefferson: Author of America is a short biography of Thomas Jefferson, the third President of the United States (1801–09) and the principal author of the Declaration of Independence (1776), by author, journalist and literary critic Christopher Hitchens. It was released as a part of Harper Collins' Eminent Lives series of "brief biographies by distinguished authors on canonical figures."
Title: Thomas Jefferson
Content:  Thomas Jefferson (April 13, 1743 – July 4, 1826) was an American statesman, diplomat, lawyer, architect, philosopher, and Founding Father who served as the third president of the United States from 1801 to 1809. He had previously served as the second vice president of the United States under John Adams and as the first United States Secretary of State under George Washington. The principal author of the Declaration of Independence, Jefferson was a proponent of democracy, republicanism, and individual rights, motivating American colonists to break from the Kingdom of Great Britain and form a new nation; he produced formative documents and decisions at both 
Title: 3rd United States Congress
Content:  The 3rd United States Congress was a meeting of the legislative branch of the United States federal government, consisting of the United States Senate and the United States House of Representatives. It met at Congress Hall in Philadelphia, Pennsylvania from March 4, 1793, to March 4, 1795, during the fifth and sixth years of George Washington's presidency. The apportionment of seats in the House of Representatives was governed by the Apportionment Act of 1792 and based on the 1790 Census. The Senate had a Pro-Administration majority, and the House had an Anti-Administration majority.
Title: 3rd United States Congress
Content: . Robert Rutherford (A) ; . Andrew Moore (A) ; . Joseph Neville (A) ; . Francis Preston (A) ; . George Hancock (P) ; . Isaac Coles (A) ; . Abraham B. Venable (A) ; . Thomas Claiborne (A) ; . William B. Giles (A) ; . Carter B. Harrison (A) ; . Josiah Parker (P) ; . John Page (A) ; . Samuel Griffin (P) ; . Francis Walker (A) ; . James Madison (A) ; . Anthony New (A) ; . Richard Bland Lee (P) ; . John Nicholas (A) ; . John Heath (A) 
Title: 23rd United States Congress
Content: President: Martin Van Buren (J) ; President pro tempore: Hugh Lawson White (J), until December 15, 1833 ; George Poindexter (NR), June 28, 1834 – November 30, 1834 ; John Tyler (NR), from March 3, 1835 
Title: 1835 in the United States
Content: President: Andrew Jackson (D-Tennessee) ; Vice President: Martin Van Buren (D-New York) ; Chief Justice: John Marshall (Virginia) ; Speaker of the House of Representatives: John Bell (W-Tennessee) (until March 4), James K. Polk (D-Tennessee) (starting December 7) ; Congress: 23rd (until March 4), 24th (starting March 4)  {| class="wikitable collapsible collapsed" ! Governors and Lieutenant Governors
Title: 1803 in the United States
Content: President: Thomas Jefferson (DR-Virginia) ; Vice President: Aaron Burr (DR-New York) ; Chief Justice: John Marshall (Virginia) ; Speaker of the House of Representatives: Nathaniel Macon (DR-North Carolina) ; Congress: 7th (until March 4), 8th (starting March 4)  {| class="wikitable collapsible collapsed" ! Governors and Lieutenant Governors
Title: Timeline of United States history (1790–1819)
Content: 1801 – Thomas Jefferson becomes the third President; Aaron Burr becomes Vice President ; 1803 – Marbury v. Madison (5 US 137 1803) allows Supreme Court to invalidate law passed by the United States Congress for first time: the Judiciary Act of 1789 ; 1803 – Louisiana Purchase ; 1803 – Ohio, formerly part of Connecticut, becomes the 17th state ; 1804 – 12th Amendment ratified ; 1804 – New Jersey abolishes slavery ; 1804 – Burr-Hamilton duel (Alexander Hamilton dies) ; 1804 – Lewis and Clark set out ; 1804 – U.S. presidential election, 1804: Thomas Jefferson reelected president; George Clinton elected vice president ; 1805 – President Jefferson begins second term; George Clinton becomes Vice President ; 1807 – Embargo Act of 1807 ; 1807 – Robert Fulton invents steamboat ; 1807 – U.S. slave trade with Africa ends ; 1808 – U.S. presidential election, 1808: James Madison elected president, George Clinton reelected vice president 
Title: 1853 in the United States
Content: President: Millard Fillmore (W-New York) (until March 4), Franklin Pierce (D-New Hampshire) (starting March 4) ; Vice President: ; until March 4: vacant ; March 4–April 18: William R. King (D-Alabama) ; starting April 18: vacant ; Chief Justice: Roger B. Taney (Maryland) ; Speaker of the House of Representatives: Linn Boyd (D-Kentucky) ; Congress: 32nd (until March 4), 33rd (starting March 4)  {| class="wikitable collapsible collapsed" ! Governors and Lieutenant Governors

Question: third president of the united states of america?
Answer: Thomas Jefferson.