Arlington is a town in Middlesex County, Massachusetts, United States. The town is six miles (10 km) northwest of Boston, and its population was 46,308 at the 2020 census.

European colonists settled the Town of Arlington in 1635 as a village within the boundaries of Cambridge, Massachusetts, under the name Menotomy, an Algonquian word considered by some to mean “swift running water”, though linguistic anthropologists dispute that translation. A larger area, including land that was later to become the town of Belmont, and outwards to the shore of the Mystic River, which had previously been part of Charlestown, was incorporated on February 27, 1807, as West Cambridge, replacing Menotomy. In 1867, the town was renamed Arlington, in honor of those buried in Arlington National Cemetery; the name change took effect that April 30.

The Massachusett tribe, part of the Algonquian group of Native Americans, lived around the Mystic Lakes, the Mystic River and Alewife Brook. When the tribal chief, Nanepashemet, was killed by a rival tribe in about 1619, Nanepashemet’s widow, known to history only as “Squaw Sachem of Mistick”, became the acknowledged leader of the tribe. In 1639 she deeded the land of what was then Cambridge and Watertown to the colonists. She lived her last years on the west side of the Mystic Lakes near what is now Medford, Massachusetts, where she died sometime between 1650 and 1667.

A stream called Mill Brook flows through the town, which historically figured largely into Arlington’s economy. In 1637, Captain George Cooke built the first mill in this area. Subsequently, seven mills were built along the stream, including the Old Schwamb Mill, which survives to this day. The Schwamb Mill has been a working mill since 1650, making it the longest working mill in the country.

Paul Revere’s famous midnight ride to alert colonists took him through Menotomy, now known as Arlington. Later on that first day of the American Revolution, more blood was shed in Menotomy than in the battles of Lexington and Concord combined. Minutemen from surrounding towns converged on Menotomy to ambush the British on their retreat from Concord and Lexington. All in all, 25 colonials were killed in Menotomy (half of all Americans killed in the day’s battles), as well as 40 British troops (more than half their fatalities).

The Jason Russell House, a yellow colonial, is today a museum which remembers those twelve Americans, including Russell himself, who were killed in and around this pictured dwelling on April 19, 1775. Bullet holes are visible in the interior walls to this day.