What is significant about lexington and concord?

The Battles of Lexington and Concord signaled the start of the American Revolutionary war on April 19, 1775. The British Army set out from Boston to capture rebel leaders Samuel Adams and John Hancock in Lexington as well as to destroy the Americans store of weapons and ammunition in Concord.

Explanation:

The Battles of Lexington and Concord on 19 April 1775, the famous 'shot heard 'round the world', marked the start of the American War of Independence (1775-83). Politically disastrous for the British, it persuaded many Americans to take up arms and support the cause of independence.