Leeds /liːdz/ ( listen) is a city in West Yorkshire, England. Historically in Yorkshire's West Riding, Leeds can be traced to the 5th century name for a wooded area of the Kingdom of Elmet. 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. In the 17th and 18th centuries Leeds became a major centre for the production and trading of wool.