Land (state) of Germany. area 15,700 sq km/6,060 sq mi capital Kiel towns Lubeck, Flensburg, Schleswig features river Elbe, Kiel Canal, Heligoland products shipbuilding, mechanical and electrical engineering, food processing population (1988) 2,613,000 religion 87% Protestant; 6% Catholic history Schleswig (Danish Slesvig) and Holstein were two duchies held by the kings of Denmark from 1460, but were not part of the kingdom; a number of the inhabitants were German, and Holstein was a member of the Confederation of the Rhine formed 1815. Possession of the duchies had long been disputed by Prussia, and when Frederick VII of Denmark died without an heir 1863, Prussia, supported by Austria, fought and defeated the Danes 1864, and in 1866 annexed the two duchies. A plebiscite held 1920 gave the northern part of Schleswig to Denmark, which made it the province of Haderslev and Aabenraa; the rest, with Holstein, remained part of Germany.