Somerville was incorporated in 1842, and as of the 2000 census, it is home to 77,478 residents in its 4.2 square miles - making it the most densely populated municipality in New England, and second only to the New York/New Jersey metropolitan area in all of United States. Historically, Somerville had its beginnings as an industrial and working class residential neighborhood. However, with recent urban development, the growth of Harvard and Tufts campuses, and the extension of the Red Line to Davis Square, Somerville has become home to a diverse populace with roots in every corner of the world, a thriving arts community, and a vibrant coffeehouse scene. Public transportation to Boston and surrounding communities is provided by MBTA Bus, the Red Line and the Green Line of the "T", as well as regional Commuter Rail. The Utne Reader named Somerville one of the 15 hippest places to live in the United States.