Which battle that took place during the American Revolution briefly boosted colonial morale until the British recaptured the city the following month?

The battle of Lexington and Concord
The battle during the American Revolution that briefly boosted the colonial morale was the battle of Lexington and Concord.

Contributing factors  leading  to the harlem renaissance were the great migration of african americans to northern cities, which concentratedambitious  people in places where they could encourage each  other, and the first world war, which had created new industrial work opportunities for tens of thousands of people.

He droped it over the bridge into the river