St Helena island timeline By cookie21 Jan 1, 720 aboriginals came Jan 1, 1799 matthew flinders found St Helena Jan 1, 1826 named st helena after aborigianals gone Jan 1, 1850 dugong industry Jan 1, 1866 quarintine staiton built Jan 1, 1867 declared penal establishement Jan 1, 1885 tramway comences Jan 1, 1905 sisalhemp growing started Jan 1, 1932 prison closure Jan 1, 1986 new jetty opened Jan 1, 2000 museum open