I suggest looking at some history (the introduction to the 1911 Macdonnell inquiry www.manxnotebook.com/history/1911/p003.htm is short) - the Island was never any part of England - that was definitely stated in the early part of the 17th C - legally it is a Crown dependancy (ie answers to the Crown of the UK acting as Lord of Man tho quite what this description imples is a matter of legal debate tho both sides seem very happy to keep it vague - see www.gov.im) - only the Mormons seem to imply that it is part of England.