Peleg: “for in his days was the earth divided”
“And unto Eber were born two sons: the name of one was Peleg; for in his days was the earth divided...”Genesis 10:25, KJV
In the Masoretic chronology represented by the KJV genealogies, Peleg's birth falls about 1757 AM, roughly 101 years after the Flood. The wording does not itself explain the mechanism of the division. Because Genesis 10 is immediately followed by the Babel account in Genesis 11, many traditional commentators connect Peleg's “division” with the division of peoples and languages rather than with a physical splitting of continents.
Ancient witnesses preserve the same basic association. Josephus says Peleg received his name because he was born at the dispersion of the nations to their several countries. Jubilees likewise connects Peleg's birth with the descendants of Noah beginning to divide the earth among themselves, although Jubilees uses a chronology different from the Masoretic text.
Genesis 7
Genesis 10:25
Genesis 11:1-9
Genesis 14:5
Deuteronomy 2
Numbers 21; Deut. 3
Joshua 11:21-22