What did they mean by this?

>>17867482 (OP)
that's just God's lazy writing when modelling Danube

Guys, it's time to let czechoslovakia go

Continental drift, much like with the similar coastlines of Africa and South america. The historical record largely concurs with this, showing that Hungary didn't actually exist before the year 1000. There's some debate over Dacia, but personally I'm drawn to Seitz's theory that they were actually from Slovakia.