Note:  Do not rely on this information. It is very old.


Alsen, an island in the Little Belt, closely adjacent to the coast of Schleswig. Until 1864 it belonged to Denmark, but in the Prusso-Danish War it was made part of the German province of Schleswig-Holstein. It is 20 miles long, and varies in breadth from 3 to 12 miles. Sonderburg, the capital, possesses an excellent harbour.