You may find it interesting as speculation that I believe the Noah's son
Shem was the father of
Arphaxad, who was the father of
Salah, who was the father of
Eber, who was the father of
Peleg, which means division in Hebrew. The Scriptures tells us that it was in his days the earth was divided
I believe this Scripture speaks about the time that Bering Straight sunk under the Ocean in
Genesis 10:21-25. Most likely caused by an earthquake and thus creating two separate continents.