Ridgefield is a town in Fairfield County, Connecticut, United States. Situated in the foothills of the Berkshire Mountains, the 300-year-old community had a population of 24,638 at the 2010 census. The town center, which was formerly a borough, is defined by the U.S. Census Bureau as a census-designated place. Ridgefield was first settled by English colonists from Norwalk and Milford in 1708, when a group of settlers purchased land from Chief Catoonah (also known as Chief Katonah) of the Ramapo tribe. The town was incorporated under a royal charter issued in 1709. The most notable 18th century event was the Battle of Ridgefield on April 27, 1777. This American Revolutionary War skirmish involved a small colonial militia force (state militia and some Continental Army soldiers), led by, among others, General David Wooster, who died in the engagement, and Benedict Arnold, whose horse was shot from under him. They faced a larger British force that had landed at Norwalk and was returning from a raid on the colonial supply depot in Danbury. The battle was a tactical victory for the British but a strategic one for the Colonials because the British would never again conduct inland operations in Connecticut, despite western Connecticut's strategic importance in securing the Hudson River Valley. Today, the dead from both sides are buried together in a small cemetery on Main Street on the right of the entrance to Casagmo condominiums: "...foes in arms, brothers in death...". The Keeler Tavern, a local inn and museum, features a British cannonball still lodged in the side of the building. There are many other landmarks from the Revolutionary War in the town, with most along Main Street.