Town and borough (pop., 2001: 157,053), county seat of Essex , southeastern England.
It lies on the northeastern periphery of Greater London . There are remains of the Roman settlement of Caesaromagus. In 1227 Chelmsford became the regular seat of the county judicial gatherings known as assizes. The world's first wireless telegraph service was transmitted in 1920 from the local premises of Guglielmo Marconi 's company. Light engineering, especially electronics, is important to the economy.
Cathedral of Saint Mary, Chelmsford, England.
The J. Allan Cash Photolibrary