When did the battle of lexington and concord start and end?

It started April 19, 1775 and ended in 1783.
    The Historic battle commenced the American Revolutionary War. Strains had been working for a long time between inhabitants of the 13 American states and the British specialists, especially in Massachusetts. The evening of April 18, 1775, several British troops walked from Boston to adjacent Concord with a specific end goal to grab an arms reserve.