Sunderland
Sunderland was made a municipal borough of County Durham in 1835. Under the Local Government Act 1888, it was given further status as a county borough with independence from county council control. In 1974, under the Local Government Act 1972, the county borough was abolished and its area combined with that of other districts to form the Metropolitan Borough of Sunderland in Tyne and Wear. See City of Sunderland.