Cardiff Bay and Docks, Wales, late 19th century
© Science Museum / Science & Society Picture Library
Engraving. The docks of the port of Cardiff were built from 1839 by the Marquis of Bute. Cardiff grew rapidly in the mid 19th century as a port for exporting coal from the South Wales coalfields. By the turn of the 20th century, Cardiff exported more coal than any other port in the world.