Leeds is a city in West Yorkshire, England. Leeds developed as a market town in the middle Ages as part of the local agricultural economy. The name has been applied to many administrative entities over the centuries. It changed from being the name of a small manorial borough in the 13th century, through several incarnations, to being the name attached to the present metropolitan borough.
Leeds became a major centre for the production and trading of wool in the 17th and 18th centuries. During the Industrial Revolution, Leeds developed into a major mill town; wool was the dominant industry, but flax, engineering, iron foundries, printing, and other industries were important.