The Ipswich Corporation was a historic local government that owned property and governed in Ipswich, Suffolk. Since its foundation in 1200, the corporation has kept often highly detailed accounts of their operation. A great deal of these survive to this day. After a successful period of four centuries, surviving plague and many other challenges governance of the borough descended into chaos after the restoration in 1660. This lasted until new structures were imposed by the Municipal Corporations Act 1835 which created the municipal borough of Ipswich. Since the Local Government Act 1972 Ipswich has been a non-metropolitan district with borough status.