A Municipal Borough was a local government district that existed in England and Wales from 1835-1974. Municipal boroughs enjoyed that status either by virtue of an ancient charter and inclusion in the schedule of the Municipal Corporations Act 1835, or by a later grant of a charter of incorporation. Municipal Boroughs were governed by a corporation consisting of a mayor, aldermen and councillors. Many towns in the Outer London suburbs became municipal boroughs between 1890 and 1955.