(February 16, 1838–March 27, 1918), was an American philosopher and historian. He was the great-grandson of John Adams, the grandson of John Quincy Adams, and the son of Charles Francis Adams. He authored The Education of Henry Adams, 1918; as well as a nine volume work, entitled, History of the United States, 1889–91; in which he stated:
The Pilgrims of Plymouth, the Puritans of Boston, the Quakers of Pennsylvania, all avowed a moral purpose, and began by making institutions that consciously reflected a moral idea.2803