Once upon a time in Lexington, Massachusetts there was a military conflict between the Kingdom of Great Britain and it's thirteen colonies in North America during the revolutionary war on April 19, 1775.
It all began with Paul Revere and two other messengers trying to warn John Hancock and Samuel Adams of the british army and their intentions to capture them. Even though they managed to escape them, the presence of the british resulted in the first shot of the revolutionary war aka The Shot Heard Round The World and literally no one knows who set it off.
So shots were exchanged by both the American and British troops. This resulted in deaths and wounding of both troops sadly. The Battle of Lexington ended with the retreat of the colonists who were vastly outnumbered by the British. The British marched out of Lexington and made their way to Concord to seize arms and ammunition and capture any rebels that resulted in the Battle of Concord.
On April 14, 1775, General Gage received instructions from the British Secretary Of State William Legge, the Earl of Dartmouth, to disarm the rebels and to imprison the leaders of the rebellion. General Thomas Gage therefore sent and advance force of British troops to capture the patriot leaders Samuel Adams and John Hancock who were reportedly staying in the village of Lexington and sent other British troops to Concord to seize the arms and ammunition