When the Roman Empire split in the 4th century AD into the Western and Eastern empires, the boundary between the two stretched from the Montenegrin coast up the river Drina to the confluence of the Slava and the Danube and then further north. This boundary has remained virtually unchanged for 1500 years: the European, Catholic west and the Orthodox east meet on Slav territory.
When the Roman Empire split in the 4th century AD into the Western and Eastern empires, the boundary between the two stretched from the Montenegrin co...
