trying to fix duchy of Poland (981 - 990 )
Added Duchy of Poland ( 981 - 990 )
Added Duchy of Poland ( 981 - 990 )
Added South Slavs (0600 - 0800 )
Added East Slavs (0500 - 0700 )
Added Western Slavs (0500 - 0700 )
Added Western Slavs (0500 - 0700 )
Fixed the border of the duchy of Poland 973 - 981
Fixed the border of the duchy of Poland 960 - 973
Founded one doubled relation for the Duchy of Poland at Fürstenwalder Spree
Changed borders of the Duchy of Poland. Now they are on rivers
Changed borders of the Duchy of Poland. Now they are on rivers
Added Poznań city from 960 to 1793
Added place=country and wikidata to the label of the Duchy of Poland