- January – Thomas Jefferson writes an "alternative" history of the colonies elaborating on what he wrote in 1774 in A Summary View of the Rights of British America. To show that the original English colonists saw themselves as independent of King and Parliament, he draws on Richard Hakluyt's The Principal Navigations Voyages Traffiques & Discoveries Made by Sea or Overland to the Remote & Farthest Distant Quarters of the Earth...., first published in London, 1598-1600. (Series 7, Volume 3, Historical Notes on Virginia).
- March 31 – Thomas Jefferson's mother, Jane Randolph Jefferson. According to the Jefferson family bible, she was born February 9, 1720 (o.s.), in Shadwell parish, Tower Hamlets, London.