The federation of Stoke-on-Trent was the 1910 amalgamation of the six Potteries towns of Burslem, Tunstall, Stoke-upon-Trent, Hanley, Fenton and Longton into the single county borough of Stoke-on-Trent. An anomaly in the history of English local government, this was the first union of its type and the only such event to take place until the 1960s. lists the federation of Stoke-on-Trent as unique, as the publication precedes the recommendations of the Local Government Commission for England (1958–1967). These recommendations created other county boroughs by federation, for example the County Borough of Warley created by the Local Government (West Midlands) Order 1965 (SI 1965 No. 2139) and the County Borough of Teesside created by the Teesside Order 1967 (SI 1967 No. 396).}} The 1910 federation was the culmination of a process of urban growth and municipal change that started in the early 19th century.
The first federation attempt was made in 1900 with a resurrection of the county plan. In 1902, Hanley Council led attempts to form an expanded county borough, but disagreement over the complex financial issues of rates, assets and loans caused Fenton to pull out, quickly followed by Burslem and Stoke, and the proposal was abandoned in 1903. The second and final federation process, between 1905 and 1910, was instigated by Longton Town Council with support from Stoke and Hanley and opposition from Fenton, Tunstall and Burslem. Issues again arose over the financial settlement and discussions continued during the progress of the Federation Bill through Parliament. The bill was passed in the House of Commons and was still under debate in the House of Lords when the six towns announced that they had come to an agreement. Passed in December 1908, the act came into force on 31 March 1910. The new Stoke-on-Trent was a county borough from then until [Local_Government_Act_1972|1974]. In addition, city status was granted to Stoke-on-Trent by King George V on 1 July 1925.