Thomas Jefferson was the third President of the United States, serving from 1801 to 1809. He is best known for drafting the Declaration of Independence in 1776, which proclaimed the colonies' freedom from British rule. Jefferson was a key figure in the early development of the United States and advocated for individual rights and democracy. In addition to his political career, Jefferson was an accomplished architect and founded the University of Virginia. He was a proponent of education and believed in the importance of an informed citizenry. Jefferson's legacy includes his contributions to American philosophy, governance, and culture.