Massachusetts Historical Society
Mhs: Coming of the American Revolution: Lexington and Concord
Provides vivid details of what really happened at Lexington and Concord through the use of original documents. Includes great teacher resources.
Library of Congress
Loc: The American Revolution Began April 19, 1775
This is an interesting site explaining the beginning of the American Revolution. Read all about the communication system that signaled the beginning of the war.