Plymouth is a town in Litchfield County, Connecticut, United States. It is named after Plymouth, Devon, England. The population was 12,243 at the 2010 census. The town of Plymouth includes the villages of Terryville and Pequabuck.

The community was incorporated in 1795, and became known nationally for the manufacture of clocks. The town was named after Plymouth, Massachusetts. Plymouth (formerly Northbury, a section of Waterbury]) was originally used as a burying ground for Waterbury. History records show that it was founded by a group of people who believed they found a large deposit of lead. This fabled "lead mine" never actually existed (or is still yet to be discovered). The oldest home in the community is on Route 6, and dates to 1690-1700. In the 1790s, George Washington traveled through here, both to visit relatives and to stay away from the coastline. The Terry family participated in a great deal of Plymouth's history. Eli Terry became partners with Seth Thomas (clockmaker) and Silas Hoadley to manufacture clocks in the Greystone section of town. Eli gave the factory to Hoadley and Thomas, and opened his own clock factory near Carter Road in Plymouth Center, while Thomas moved to Plymouth Hollow. Eli Terry, Jr. (son of Eli Terry) joined with another man who was interested in the cabinet and lock industry and they opened Eagle Lock Company. In the 1880s, the Plymouth Hollow section of Plymouth decided to split off and become their own town called Thomaston, Connecticut, named after Seth Thomas (clockmaker). The Eagle Lock Company closed in the 1970s and later, in 1975, the entire abandoned site burned, leaving one building left undamaged. The rest of the buildings were torn down or had floors removed.

...
Wikipedia