▁island ▁is ▁illustrated ▁in ▁four ▁Man x ▁National ▁Heritage ▁sites ▁in ▁the ▁centre ▁of ▁Cast let own : ▁Castle ▁R ush en , ▁the ▁N aut ical ▁Museum ▁( in ▁the ▁secret ▁passage - filled ▁home ▁of ▁invent or , ▁politician , ▁bank er ▁and ▁probable ▁sm ugg ler ▁George ▁Qu ay le ), ▁the ▁Old ▁Gram mar ▁School ▁( origin ally ▁a ▁church ▁from ▁AD ▁ 1 2 0 0 ) ▁and ▁the ▁Old ▁House ▁of ▁Ke ys . ▁▁ ▁Fish ing ▁boats ▁still ▁go ▁out ▁to ▁fish ▁from ▁the ▁har bour . ▁Com mer cial ▁traffic ▁to ▁the ▁port ▁ended ▁in ▁the ▁ 1 9 7 0 s , ▁although ▁there ▁has ▁been ▁an ▁on going ▁expansion ▁of ▁financial ▁and ▁industrial ▁business es ▁in ▁the ▁area . ▁The ▁first ▁tele ph ones ▁on ▁the ▁Is le ▁of ▁Man ▁appeared ▁in ▁Cast let own ▁in ▁ 1 9 0 1 . ▁ ▁Polit ics ▁Cast let own ▁is , ▁along ▁with ▁Douglas , ▁Pe el ▁and ▁Ram sey , ▁one ▁of ▁four ▁town ▁local ▁authorities . ▁They ▁were ▁all ▁designated ▁as ▁towns ▁by ▁the ▁Town ▁Act ▁ 1 8 5 2 . ▁Cast let own ▁became ▁a ▁local ▁authority ▁in ▁ 1 8 8 3 . ▁ ▁Until ▁ 2 0 1 6 ▁Cast let own ▁was ▁also ▁a ▁House ▁of ▁Ke ys ▁constitu ency , ▁elect ing ▁one ▁Member ▁of ▁the ▁House ▁of ▁Ke ys ▁( M H K ). ▁The ▁town ' s ▁representative ▁for ▁ 3 0 ▁years ▁until