8 things you never knew about the German state of Schleswig-Holstein thelocal.de - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from thelocal.de Daily Mail and Mail on Sunday newspapers.
The rise and fall of the Hanseatic League, a medieval trading network stretching from Russia to England, dominated northern European maritime trade for over 300 years.
Among items found are Byzantine earrings and a replica of an Islamic coin, which archeologists say further supports the idea that the area was once a thriving Viking trade center