The Battle of Long Island, the largest battle of the American Revolutionary War, was fought in August 1776 entirely within the modern-day borough of Brooklyn. After the battle, in which the Americans were defeated, leaving subsequent smaller armed engagements following in its wake, the city became the British military and political base of operations in North America. The city was a haven for Loyalist refugees, as well as escaped slaves who joined the British lines for freedom newly promised by the Crown for all fighters. As many as 10,000 escaped slaves crowded into the city during the British occupation. When the British forces evacuated at the close of the war in 1783, they transported 3,000 freedmen for resettlement in Nova Scotia. They resettled other freedmen in England and the Caribbean.

What was the biggest battle of the American Revolution?