Join Prospect Park Alliance to learn more about the Revolutionary War's Battle of Brooklyn, the first and largest battle of the American War for Independence, on its 250th anniversary with this replica of the famous Battle Pass. In August 1776, American troops established a defensive position on this site, in the hills separating Flatbush from the rest of Brooklyn, to hold off the British. However, on August 27, British troops evaded these defenses, forcing the Americans to withdraw across the Gowanus Creek to temporary safety. Nearly a century later, Prospect Park landscape architects Frederick Law Olmsted and Calvert Vaux named this area Battle Hill to commemorate the soldiers who fought there. This replica military installation serves as a place for visitors to learn more about this formative battle. Explore the full slate of America 250 events.