the following text is based on an article in Wikipedia
The Welwyn Hatfield District or Borough of Welwyn Hatfield is a local government district in southern Hertfordshire, England.
Its covers the two towns of Welwyn Garden City and Hatfield, along with numerous smaller settlements from the neighbouring rural districts. According to a mid-2014 estimate, it has a population of 116,000.
The district was formed on 1 April 1974, as a merger of the
In April 2006 a charter conferring borough status was granted, and the title of the council officially changed to Welwyn Hatfield Borough Council on 22 May 2006.