John Adams, Jr. was an American lawyer, author, statesman, and diplomat. He served as the second President of the United States (1797–1801), the first Vice President (1789–97), and as a Founding Father was a leader of American independence from Great Britain. Adams was a political theorist in the Age of Enlightenment who promoted republicanism and a strong central government. His innovative ideas were frequently published. He was also a dedicated diarist and correspondent, particularly with his wife and key advisor Abigail.