Countries from the Baltic Sea
The countries' layer symbolizes the land masses around the sea basin.
Information about each country can be viewed by clicking on the 'i' icon (see image below) on each country, this is information retrieved from wikipedia and other non-official sources as well as common knowledge.
Adapted from http://www.naturalearthdata.com
January 2017
This layer was obtained by combined the countries layer with the lakes layer and simplifying geometries. In the course of the isimplifcation process some smaller areas (islands) were removed.