Bradford is a city in West Yorkshire, England. It is governed by a metropolitan borough named after the city, the wider county has devolved powers. It had a population of 349,561 at the 2011 census; the second-largest subdivision of the West Yorkshire Built-up Area after Leeds, which is approximately to the east. The borough had a population of , making it the most populous district in England.
Historically part of the West Riding of Yorkshire, the city grew in the 19th century as an international centre of textile manufacture, particularly wool. It was a boomtown of the Industrial Revolution, and amongst the earliest industrialised settlements, rapidly becoming the "wool capital of the world"; this in turn gave rise to the nicknames "Woolopolis" and "Wool City". Lying in the eastern foothills of the Pennines, the area's access to supplies of coal, iron ore and soft water facilitated the growth of a manufacturing base, which, as textile manufacture grew, led to an explosion in popul