Throughout the history of Europe, one thing has remained constant and that’s that countries never seem to be happy with their borders and are always trying to gain more land or kick people out of their country, which you can see right now with all the crap going on with Russia and the Ukraine.
As you might expect if you know anything about history, watching a 1000 year time-lapse of the European borders brings up a lot of changes and will probably educate you in ways you never thought possible. Who knew that Poland was such a superpower back in the day?
http://www.youtube.com/watch?v=u1sjHGODFHg
☛ More Borders: Pangea Modern Geopolitical Borders