Amherst is a town in Hampshire County, Massachusetts, United States in the Connecticut River valley. As of the 2010 census, the population was 37,819, making it the largest community in Hampshire County (although the county seat is Northampton).
The earliest known document of the lands now comprising Amherst is the deed of purchase dated December 1658 between John Pynchon of Springfield and three native inhabitants, referred to as Umpanchla, Quonquont, and Chickwalopp. According to the deed, "ye Indians of Nolwotogg (Norwottuck) upon ye River of Quinecticott (Connecticut)" sold the entire area in exchange for "two Hundred fatham of Wampam & Twenty fatham, and one large Coate at Eight fatham wch Chickwollop set of, of trusts, besides severall small giftes". Amherst celebrated its 250th anniversary in 2009. The Amherst 250th Anniversary Celebration Committee was established to oversee the creation and implementation of townwide activities throughout 2009. The Amherst Historical Society also organized events, including a book published by them and written by Elizabeth M. Sharpe, Amherst A to Z.When the first permanent English settlements arrived in 1727, this land and the surrounding area (including present-day South Hadley and Granby) belonged to the town of Hadley. It gained precinct status in 1734 and eventually township in 1759.When it incorporated, the colonial governor assigned the town the name Amherst after Jeffery Amherst, 1st Baron Amherst.