Adam Clarke on Genesis 10:22

Elam - From whom came the Elamites, near to the Medes, and whose chief city was Elymais.

Asshur - Who gave his name to a vast province (afterwards a mighty empire) called Assyria.

Arphaxad - From whom Arrapachitis in Assyria was named, according to some; or Artaxata in Armenia, on the frontiers of Media, according to others.

Lud - The founder of the Lydians. In Asia Minor; or of the Ludim, who dwelt at the confluence of the Euphrates and Tigris, according to Arias Montanus.

Aram - The father of the Arameans, afterwards called Syrians.