Marketing
It is said that from the summit of Snaefell you can see "seven kingdoms at a glance" and this legend was emblazoned on the railway's advertising for many years. Those kingdoms are: England, Scotland, Wales, Ireland, Mann (the local term for Isle of Man, the kingdoms of Heaven and the sea; sometimes the advertisements have read five or six kingdoms, but more usually the total of seven is cited.
Read more about this topic: Snaefell Summit Railway Station