- Mar 2 American troops begin shelling the British in Boston
- Mar 3 American commodore Esek Hopkins occupies Nassau, Bahamas
- Mar 4 American War of Independence: The Americans capture Dorchester Heights dominating the port of Boston, Massachusetts
Historic Publication
Mar 9 Adam Smith publishes the influential economics book "The Wealth of Nations"
Adam Smith
- Mar 17 British forces evacuate Boston to Nova Scotia during Revolutionary War
Event of Interest
Mar 25 Continental Congress authorizes a medal for George Washington
George Washington
- Mar 28 Juan Bautista de Anza finds the site for the Presidio of San Francisco