Thomas Jefferson (April 13, 1743 – July 4, 1826)[2] was the third President of the United States (1801–1809) and the principal author of the Declaration of Independence (1776). Jefferson was one of the most influential Founding Fathers, known for his promotion of the ideals of republicanism in the United States.
Jefferson envisioned America as the force behind a great "Empire of Liberty"[3] that would promote republicanism and counter the imperialism of the British Empire.
Major accomplishments during his presidency include the Louisiana Purchase (1803), which doubled the size of the United States, and the Lewis and Clark Expedition (1804–1806), which significantly advanced geographic and scientific knowledge of North America.
Jefferson's tenure also saw escalating tensions with both Britain and France, which led to war with Britain in 1812 after he left office. To date, Jefferson is the only president to serve two full terms in office without vetoing a single bill of Congress. Jefferson has been consistently ranked by scholars as one of the greatest of U.S. presidents.
Please read more about him as father of democracy: http://en.wikipedia.org/wiki/Thomas_Jefferson
