The Battle of Lexington and Concord took place on April 19, 1775, marking the start of the American Revolutionary War. British troops aimed to seize colonial military supplies stored in Concord, Massachusetts. The first confrontation occurred in Lexington, where colonial militia faced the British, resulting in the famous phrase "the shot heard 'round the world." After the skirmish in Lexington, the British continued to Concord, where they encountered stronger resistance from the colonial militia. The battles demonstrated the colonists' willingness to fight for their rights and freedoms, ultimately leading to the formation of the Continental Army and the push for independence from British rule.