On what date were the Battles of Lexington and Concord fought in Massachusetts?

The Battles of Lexington and Concord were fought on April 19, 1775, in Massachusetts.

British troops marched from Boston toward Concord to seize military supplies believed to be stored there. Patriot leaders learned of the expedition and sent warnings through the countryside. Paul Revere, William Dawes, and Samuel Prescott were among those who helped alert local militia, although Revere was captured before reaching Concord.

At dawn in Lexington, British regulars and colonial militiamen confronted one another. Shots were fired, eight militiamen were killed, and the British continued toward Concord. Later that morning, colonial forces engaged British troops at the Old North Bridge in Concord and forced them to withdraw toward Boston.

The identity of the person who fired the first shot at Lexington remains uncertain. The day is generally regarded as the opening military engagement of the American Revolutionary War, although political conflict had been escalating for years.