Twenty-six of the primitive nations are descended from Shem, of which five are immediate.
(45) Elam was settled in a part of the modern Persia, to which he gave name. This name seems to be preserved in Elymais, a province of that country bordering on the Dijlah, and now included in Khusistan. It was early governed by its own kings Genesis 14:1, and continued to occupy a distinct place among the nations in the time of the later prophets Isaiah 22:6; Jeremiah 49:34; Ezekiel 32:24. Its capital was Shushan or Susa Daniel 8:2, now Shuster.
(46) Asshur seems to have originally occupied a district of Mesopotamia, which was bounded on the east by the Tigris Genesis 2:14. The inviting plains and slopes on the east of the Tigris would soon occasion a migration of part of the nation across that river. It is possible there may have been an ancient Asshur occupying the same region even before the flood Genesis 2:14.
(47) Arpakshad is traced in Ἀῤῥαπαχῖτις Arrapachitis, Arrhapachitis, a region in the north of Assyria. V. Bohlen and Benfey identify it with Ariapakshata, denoting a country beside Aria. Gesenius renders it border or stronghold of the Kasdim; but the components of the word are uncertain. The nations descended from Arpakshad are noted at the close on account of their late origin, as well as their import for the subsequent narrative.
(48) Lud is usually identified with the Lydians, Λυδοὶ Ludoi, who by migration at length reached and gave their name to a part of the west coast of Asia Minor.
(49) Aram gave name to the upper parts of Mesopotamia and the parts of Syria north of Palestine. Hence, we read of Aram Naharaim (of the two rivers), Aram Dammesek (of Damascus), Aram Maakah on the southwest border of Damascus, about the sources of the Jordan, Aram Beth Rechob in the same neighborhood, and Aram Zoba to the north of Damascus. The name is perhaps varied in the Ἄριμοι Arimoi of Homer (Iliad 2:783) and Strabo (xiii. 4, 6). From Aram are descended four later nations.

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.

The children of Shem,.... Whose names are
Elam and Ashur, and Arphaxad, and Lud, and Aram; and who, as Josephus (f) says, inhabited Asia, from Euphrates to the Indian ocean: his first born, Elam, was the father of the Elymaeans, from whom sprung the Persians, as the same writer observes, and his posterity are called Elamites, Acts 2:10 their country Elam, and is sometimes mentioned with Media, when the Persians and Medes are intended, Isaiah 21:2 see also Isaiah 22:6, &c. in Daniel's time, Shushan, in the province of Elam, was the seat of the kings of Persia: the country of Elymais, so called from this man, is said by Pliny (g) to be divided from Susiane by the river Eulaeus, and to join with Persia; and the famous city of Elymais, the metropolis of the country, is placed by Josephus (h) in Persia. Ashur, the second son of Shem, gives name to Assyria, a country frequently mentioned in Scripture; and which, according to Ptolemy (i), was bounded on the north by part of Armenia the great, and the mountain Niphates, on the west by Mesopotamia and the river Tigris, on the south by Susiane, and on the east by part of Media. Strabo says (k) they call Babylonia, and great part of the country about it, Assyria, in which was Ninus or Nineveh, the chief city of the Assyrian empire; and which was built by Ashur, as Josephus (l) affirms, and says he gave the name of Assyrians to his subjects: Arphaxad, the third son of Shem, from him that part of Assyria, which lay northward next to Armenia, was called Arphaxitis, as it is probable that was its original name, though corruptly called by Ptolemy (m) Arrapachitis: Josephus says (n), he gave name to the Arphaxadaeans, whom he ruled over, now called Chaldeans; and indeed the name of the Chaldeans may as well be derived from the latter part of Arphaxad's name, "Chashad", as from Chesed, the son of Nahor, and brother of Abraham, as it more commonly is; since the Chaldeans were called Chasdim before Chesed was born, and were a nation when Abraham came out of Ur, before Chesed could be old or considerable enough to build towns and found a nation; see Genesis 11:31 though Bochart treats this as a mere dream, yet he is obliged to have recourse to the usual refuge, that Ur was called Ur of the Chaldees, by anticipation. The fourth son of Shem was Lud, from whom sprung the Lydians, a people of Asia minor, and whose country is called Lydia, including Mysia and Caria, which all lay by the river Maeander; and Lud, in the Phoenician language, signifies bending and crooked, as that river was, being full of windings and turnings: some think that the posterity of Lud are carried too far off from those of his brethren, but know not where else to fix them. From Aram, the last son of Shem, sprung the Aramaeans, called by the Greeks Syrians, as Josephus (o) observes; and by Homer (p) and Hesiod (q) and so says Strabo (r); some by the Arimi understand the Syrians, now called Arami; and elsewhere (s) he observes, that they who are by us called Syrians, are by the Syrians themselves called Aramaeans, and this is the name they give to themselves to this day: the country inhabited by them included Mesopotamia and Syria, and particularly all those places that have the name of Aram added to them, as Padan Aram, and Aram Naharaim (which is Mesopotamia), Aram of Damascus, Aram Zobah, Aram Maacha, and Aram Beth Rehob, Genesis 28:2 and the title of Psalm 60:1, the Septuagint version here adds, "and Cainan", but without any authority.
(f) Antiqu. l. 1. c. 6. sect. 4. (g) Nat. Hist. l. 6. c. 27. (h) Antiqu. l. 12. c. 8. sect. 1. (i) Geograph. l. 6. c. 1. (k) Ib. l. 16. p. 507. (l) Antiqu. l. 1. c. 6. sect. 4. (m) Ut supra. (Geograph. l. 6. c. 1.) (n) Ut supra. (Antiqu. l. 1. c. 6. sect. 4.). So R. Gedaliah, in Shalshalet Hakabala, fol. 76. 2. (o) Ut supra. (Antiqu. l. 1. c. 6. sect. 4.) (p) Iliad. 2. (q) Theogonia. (r) Geograph. l. 13. p. 431. l. 16. p. 540. (s) Ib. l. 1. p. 28.