Benjamin Rush (January 4, 1746 [O.S. December 24, 1745] – April 19, 1813) was a Founding Father of the United States who signed the United States Declaration of Independence, and a civic leader in Philadelphia, where he was a physician, politician, social reformer, humanitarian, and educator and the founder of Dickinson College. Rush attended the Continental Congress. He served as Surgeon General of the Continental Army and became a professor of chemistry, medical theory, and clinical practice at the University of Pennsylvania. Rush was a leader of the American Enlightenment and an enthusiastic supporter of the American Revolution. bHe was a confidant of Thomas Jefferson (who is often quoted from letters to Rush), authored one of the first major essays against slavery in the Colonies (in 1773), and is considered by some to be the "Father of American Psychiatry".More