Historical reference: Do not rely on this information. It is very old. About this collection
Dago, a Russian island in the government of Esthonia at the entry of the Gulf of Finland, and N. of the island of OEsel, from which it is separated by a narrow channel. It became Russian in 1791, and the inhabitants who are Danish, Swedish, and Russian, subsist chiefly by hunting and fishing - especially sealing. There is some coasting trade. Area 370 square miles.