Sheffield is a district with the official title of city, in the metropolitan county of South Yorkshire with 577,789 inhabitants in 2017, making the city the fourth largest in England by population. Around 1.37 million people live in the conurbation around the city. The name is derived from the river Sheaf, which runs through the city.
Sheffield became famous in the 19th century for its steel production. Thanks to local innovations such as methods to produce steel from crucibles and stainless steel, the population grew ten times as large during the Industrial Revolution. Sheffield received its city right in 1843 and became City of Sheffield in 1893. In the 70s and 80s of the twentieth century, local industry shrank due to international competition. At the same time, the coal mines in the area were closed.
Like other UK cities, Sheffield invested heavily in urban renewal in the 21st century, so that profit (Gross value added, compare gross domestic product + subsidy tax) increased by 60% since 1997, to £ 9.2 billion in 2007. Since then, it has grown the economy annually by 5%, more than the surrounding Yorkshire and the Humber region. Today it is an important service center, where a number of banks are located. There is a tram system, the Sheffield Supertram.
The city lies in the valleys of the River Don and its four tributaries, the Loxley, Porter Brook, Rivelin and Sheaf. Green covers 61% of Sheffield’s surface and one third of the city falls within the Peak District National Park. The city has more than 250 parks, forests and gardens, and around 2 million trees. As a result, Sheffield has the most trees per inhabitant of all European cities.