sentences:  The local government district expanded westward, and was divided into wards for the first time (the new areas of Burnham, Farnham and Stoke as well as the divisions of the old district Central, Chalvey, Langley and Upton).In 1938 the town received its first royal charter and became a municipal borough.See List of Mayors of Slough which starts with the Charter Mayor in 1938, who became the first elected mayor in November 1938.