Leeds is the largest city in the county of West Yorkshire, England. Leeds is to the east of Bradford and south-west of York. The city forms the core of the City of Leeds metropolitan borough, which also includes the towns of Horsforth, Morley, Otley, Pudsey, Rothwell and Wetherby.
Leeds was a small manorial borough in the 13th century, becoming a major centre for the production and trading of wool in the 17th and 18th centuries, then a major mill town during the Industrial Revolution; wool was still the dominant industry, but flax, engineering, iron foundries, printing, and other industries were also important. From being a market town in the valley of the River Aire in the 16th century, Leeds expanded and absorbed the surrounding villages to become a populous urban centre by the mid-20th century. Leeds attained City status in 1893.
Leeds is the largest subdivision of the West Yorkshire Built-up Area and the Yorkshire and Humber region's most populous. West Yorkshire BUA is the UK's fourth-most populous urban area with a reported population of 1.8 million in 2013. The metropolitan borough governed from the city had a population of 793,139, the 2nd most populous district in England.