What event on April 19, 1775, began the American Revolutionary War and is commemorated before America250?

The Battles of Lexington and Concord on April 19, 1775, began the American Revolutionary War.

British troops marched from Boston toward Concord to seize colonial military supplies. Patriot riders and local warning networks alerted militia companies, leading to the first fighting at Lexington and then a larger confrontation at Concord’s North Bridge. The British column withdrew toward Boston while militia members fired from positions along the road.

The phrase “shot heard round the world” is associated with the opening clash, although the identity of the person who fired the first shot remains disputed. Lexington was a brief skirmish, while the day’s fighting extended through several communities. The battles are sometimes confused with Bunker Hill, which occurred two months later, or with the Boston Tea Party, a 1773 protest rather than a battle.