Wikipedia says:
This article is about the region of Schleswig on the German/Danish border. For the town of the same name see: Schleswig (city). There is also Schleswig, Iowa, in the United States of America.</div>
Schleswig or South Jutland (Sønderjylland or Slesvig; Schleswig; Low German: Sleswig; North Frisian: Slaswik or Sleesweg) is a region covering the area about 60 km north and 70 km south of the border between Germany and Denmark. The region is also known archaically in English as Sleswick.
The area's traditional significance lies in the transfer of goods between the North Sea and the Baltic Sea, connecting the trade route through Russia with the trade routes along Rhine and the Atlantic coast (see also Kiel Canal). (...) more....

