What was Lexington and concord?

lexington and concord was when paul rever set out to get more soldiers in the militia for the Americans. The british thought that the American colonists were storing ammunition and war supplies in concord so they went to lexington to try to stop the Americans and they killed a few colonists but no one knows who fired the first shot. Then, the british won and went to concord but American colonists militia was waiting there because they heard rever's and William dawes alarms. the American won