That was never in dispute. The ancients didn't even cross a sea if they could avoid it, they generally sailed within sight of land. Are you trying to say they had the ships to cross the Atlantic?
Still no explanation of how Sumerians and Egyptians ended up in different places?
Here is one:
" The Pre-Flood home of Noah and his family was in the area of Babylonia which was some 500 miles east from Mount Ararat, in what is today modern Turkey. After the flood they migrated back to their homeland and built cities. God then caused the confusion of languages which caused them to disperse into the world."
These people could sail across the seas. Thus, you are wrong. You have the history and still wrong. Otherwise, you would've been all over me like a rash.
I can give you the details if you want.
Were you expecting me to explain how Sumerians and Egyptians ended up in different places? I don't know how, recorded history doesn't go that far back. I only know they were there before the Flood and they were there after the Flood and it doesn't seem to have been noticed by them.
You said these people could sail across the seas. I think you're just making that up. What kind of boats did they have? Hint, archeologist have never found an ancient shipwreck capable of crossing the ocean.
I only have their Biblical history and who ended up where. I assume you have the secular one. After Noah's Flood, the continents were broken up so they would have to sail across the oceans like we do today (the continents may not have been exactly like today as they are still moving) as they had no jet planes.
2 March 2018 Tim Koch is still in denial. In my recent post on the Nile Boat Races of the 1970s and early 1980s, I was rather dubious about some of the attempts by the Egyptian Ministry of Tourism …
heartheboatsing.com
I don't have who was a Tower of Babel, but afterward they didn't speak Hebrew, but different languages so they migrated across the globe as God wanted them to do. This was about 250 years after Noah's Flood, so they had boats that could make the trip. Look, your history has holes, too, as there is no explanation for the different languages.
THE DESCENDANTS OF NOAH - Genesis Ten
www.bible-truth.org
You don't have any links, so that means I am ahead. So much for Bart Ehrman. You probably have to pay for his links.