Hi Grant, awhile ago I wrote a book on the ancient peoples of Europe, and in doing so came across interesting data that showed a flood in the Black Sea. Around 5000 BC sea level rise in the Med caused it to break through into the Black sea, then a lake, flooding it. There are settlements in Bulgaria submerged under 15 feet of water! This historical flood is one instance of an actual flood that could account for several of the myths - including the Flood of Manu, since Aryan Indians came from near the Black Sea.