Which two battles mark the beginning of the revolution war?

The two battles that mark the beginning of the American Revolutionary War are the Battles of Lexington and Concord, fought on April 19, 1775. These confrontations between British troops and colonial militiamen were sparked by escalating tensions over British attempts to disarm the colonies. The phrase "the shot heard 'round the world" is often associated with these battles, symbolizing the start of open conflict between Britain and its American colonies.