Genesis 10:20

These are the sons of Ham
His sons and grandsons, which some reckon to be thirty, others thirty one, if the Philistines are taken in:

after their families, after their tongues, in their countries, [and] in
their nations:
families of the same language joined together and dwelt in the same country, (See Gill on Genesis 10:5) all Africa and a considerable part of Asia were possessed by the four sons of Ham and their posterity; Mizraim had Egypt, and Phut all the rest of Africa; and Cush and Canaan had a large portion in Asia.