Sheffield is a city in South Yorkshire, England that takes its name from the River Sheaf.
It was established in the 12th century, after Sheffield Castle was built and a small town grew up around it.
Sheffield gained world-wide recognition during the 19th century for its steel production, including various innovations in the industry. It was granted its city charter in 1893 and became officially titled the City of Sheffield.
Sheffield's industry declined during the latter part of the 20th century, and since then its economy has diversified, particularly the growth of the service industry.
Sheffield borders Rotherham to the east, Barnsley to the north and Derbyshire to the south and to the west.
Also to the west of the city is the Pennine mountain range and Peak District National Park.
Sheffield is one of the UK's largest cities and part of a group of 10 local authorities that make up the Core Cities.
It is also part of the Sheffield City Region, with 9 other areas.
Sheffield's geography is very diverse, and the city contains both large urban and rural areas.
Is is estimated to be Britain's greenest city, with nearly two thirds of the area made up of green space. This includes over 170 woodlands, 78 public parks and more trees per person than any other city in Europe.
It is also the only local authority to contain a national park within its boundaries.
This report looks at the city's population, economy, governance, transport, education, culture and attractions, health and environment.