Middlesbrough is a large town situated on the south bank of the River Tees in north-east England, that sits within the ceremonial county of North Yorkshire. The local council, a unitary authority, is Middlesbrough Borough Council. It is part of the larger built-up area of Teesside with an overall population of 376,333 according to the 2011 census.Middlesbrough was in North Riding of the county of York (1837–89), an administrative county was created with a county council in 1889 under the Local Government Act 1888, In 1968 it became the centre of the County Borough of Teesside, which was then absorbed by the non-metropolitan county of Cleveland in 1974. In 1996, Cleveland was abolished, and Middlesbrough became a unitary authority, within the ceremonial county of North Yorkshire."Erimus" ("We shall be"), in Latin, was chosen as Middlesbrough's motto in 1830, to signify the town's will to grow. It is used in the names of commercial ventures and other organisations in the town, including social clubs. The town's coat of arms show an azure lion beneath 2 ships to represent the port of Middlesbrough. The design is based on that of the Brus family who owned the site on which Middlesbrough is built.