All Intensive Purposes

A. In the Irish Sea, halfway between the Isle of Man and the Cumbrian coast:

During Viking times, the islands of the Norse Kingdom of Mann and the Isles were called the Súðreyjar or Sudreys ("southern isles") in contrast to the Norðreyjar ("northern isles") of Orkney and Shetland. This became Sodor. The Church of England diocese is still called the Diocese of Sodor and Man although it only covers Mann. When the Rev. W. V. Awdry wrote The Railway Series, he invented the island of Sodor as an imaginary island located between the Isle of Man and the Cumbrian coast.

Much, much more here.