Gen 10:
I don't think so. Let's read on:
What does "earth" refer to? Single Earth continent?25To Eber were born two sons: the name of the one was Peleg, for in his days the earth was divided,
I don't think so. Let's read on:
Ellicott's Commentary for English Readers:and his brother’s name was Joktan. 26Joktan fathered Almodad, Sheleph, Hazarmaveth, Jerah, 27Hadoram, Uzal, Diklah, 28Obal, Abimael, Sheba, 29Ophir, Havilah, and Jobab; all these were the sons of Joktan. 30The territory in which they lived extended from Mesha in the direction of Sephar to the hill country of the east. 31These are the sons of Shem, by their clans, their languages, their lands, and their nations.
32These are the clans of the sons of Noah, according to their genealogies, in their nations, and from these the nations spread abroad on the earth after the flood.
Cambridge Bible for Schools and Colleges:(25) Peleg; for in his days was the earth divided.—This may refer to the breaking up of the race of Shem into separate nations.
Pulpit Commentary:The reference is generally assumed to be to the division, or dispersion, of the peoples at the tower of Babel, the words being an anticipation of the story in Genesis 11:1-9. “The earth” will then mean “the inhabitants of the earth,” as in Genesis 11:1 and Genesis 19:31.
Barnes' Notes on the Bible:At the confusion of tongues (Bochart, Rosenmüller, Keil, Lange, Murphy); at an earlier separation of the earth's population (Delitzsch).
Matthew Poole's Commentary:The verb "divide" (פלג pālag) occurs only three times elsewhere in the Hebrew scriptures 1 Chronicles 1:19; Job 38:25; Psalm 55:10. The connection in which this rare word is used in the Psalm, "divide their tongues," seems to determine its reference in the present passage to the confusion of tongues and consequent dispersion of mankind recorded in the following chapter.
Keil and Delitzsch Biblical Commentary on the Old Testament:The earth was divided, first in language, and then in habitations.
All these commentators agree that "the earth was divided" refers to the people of the earth being divided into nations and languages. I would like to see any scholarly references interpreting this as the earth being divided into continents.in his days the earth, i.e., the population of the earth, was divided, in consequence of the building of the tower of Babel (Genesis 11:8).