What was Paul Revere system alerts?

Answer 1

Paul Revere's system of alerts was a network of riders and signal systems used to warn American colonists of British troop movements during the early stages of the American Revolution. Revere famously rode on the night of April 18, 1775, using lantern signals—one if by land, two if by sea—to indicate the route the British were taking to advance toward Lexington and Concord. This early warning system allowed colonial militias to prepare for the upcoming confrontation, ultimately playing a crucial role in the Revolutionary War.