Middlesbrough F.C. with supporters' clubs across the globe. The largest supporters' clubs include the Official Supporters' Club, the Middlesbrough Disabled Supporters' Association, Yarm Reds, Red Faction and Middlesbrough Supporters South. Middlesbrough supporters' main rivals are Sunderland (with whom they contest the Tees–Wear derby), Newcastle United (with whom they contest the Tyne–Tees derby), and Leeds United, a fact confirmed by planetfootball.com's 2004 survey. Carlisle United see Middlesbrough as their biggest rivals, but Middlesbrough supporters have not reciprocated, as they do not see Carlisle as a top three rival. The nickname "Smoggies" was first used as a derogatory term by opposing supporters; it relates
Middlesbrough trade gave it the nickname "Ironopolis". On 21 January 1853, Middlesbrough received its Royal Charter of Incorporation, giving the town the right to have a mayor, aldermen and councillors. Henry Bolckow became mayor, in 1853. On 15 August 1867, a Reform Bill was passed, making Middlesbrough a new parliamentary borough, Bolckow was elected member for Middlesbrough the following year. For many years in the 19th century, Teesside set the world price for iron and steel. The steel components of the Sydney Harbour Bridge (1932) were engineered and fabricated by Dorman Long of Middlesbrough. The company was also responsible for the