The New Student's Reference Work/Heligoland
Heligoland is a small island about a mile long and one third of a mile wide, situated in the North Sea and belonging to Germany. It is peopled by 2,080 permanent residents, but is a great summer-resort. Its people live from the lobster-fisheries and from summer visitors. The island was conquered from the Danes in 1807 by Great Britain, and ceded to Germany in 1890. Since 1891 Heligoland has been attached to Schleswig-Holstein. See Black's Heligoland.