Due to its advantageous geographical location, the city of Manchester in North-Western England became the industrial centre of the United Kingdom in the 19th century. The numerous rivers and streams of the region and its proximity to the coast meant that many workshops engaged in the textile industry and suppliers established themselves there as early as the 18th century. The city and its economic output grew rapidly as a result. This map from 1794 illustrates how dying workshops and other workshops (marked in green) settled near the Medlock river on what was then the edge of Manchester, thereby profiting from their close proximity to one another.
J. Thornton, A plan of Manchester and Salford, drawn from an actual survey by William Green. c.1794: Ardwick Green to Higher Ardwick. Ancoats Lane, Ancoats Hall, River Medlock; copperplate engraving (with markings added by the copy editor), 1794; image source: Manchester Library and Information Service, Green MS map.