For what purpose was the oldest canal in England initially constructed?
Brayford Pool:  It was used as a port by the Romans - who connected it to the River Trent by constructing the Foss Dyke - and has a long industrial heritage. Foss Dyke: The Foss Dyke, or Fossdyke, connects the River Trent at Torksey to Lincoln, the county town of Lincolnshire, and may be the oldest canal in England that is still in use.
i don't know