One of the early centers of the Industrial Revolution in northern America, Waltham is a city in Middlesex County, Massachusetts. The population was 59,226 at the 2000 census. The name Waltham means 'home in the woods'.
Waltham was first settled in 1634 as part of Watertown and was officially incorporated as a separate town in 1738.
The city is home to Gore Place, a mansion built in 1806 for former Massachusetts Governor Christopher Gore; The Robert Treat Paine Estate, a residence designed in collaboration between architect Henry Hobson Richardson and landscape architect Frederick Law Olmsted for philanthropist Robert Treat Paine, Jr. and the Lyman Estate, a 400-acre estate established in 1793 by Boston merchant Theodore Lyman.