The Isle of Mam was a phantom island, said to lie some distance west of the English Channel, approximately where the Great Sole Bank can be found. It should not be confused with the Isle of Man.
Although the Great Sole Bank is permanently underwater, it has been suggested that it may at one time have been visible, perhaps only at low tide, and it remained on maps for some time after it was no longer visible. Alternatively, the island was sometimes known as Brazil, and so might represent the same island as the Brazil off the west coast of Ireland.
The Isle of Man formed a Viking outpost/kingdom from circa AD 700 to AD 900, and part of the Norwegian Kingdom of the Hebrides until the 13th century when it came under the control of the Scottish crown.
The Isle of Man has for centuries used the ancient symbol known as the Triskelion: three bent legs, each with a spur, joined at the thigh.
The Isle of Man holds neither membership nor associate membership of the European Union, but forms part of the customs territory of the Union, allowing it to trade freely with EU members.