John Gill's Exposition of the Whole Bible
Genesis 11:21
And Reu lived, after he begat Sarug, two hundred and seven years,.... So that the whole of his life was two hundred and thirty nine years, the exact age of his father: in his days various kingdoms arose; according to the Arabic writer k, in the one hundred and thirtieth year of his life began Nimrod to reign at Babylon, the first king that reigned on earth: and according to the Jewish writers l, in his days began the kingdom of Egypt, which continued to the times of Octavian; and the kingdom of the Bohemians, the metropolis of which was Prague, and the kingdom of the Amazons, which continued to the times of Alexander: in his time also, the Arabic writers m say, idolatry prevailed, the worship of the sun, moon, and stars, and other things; and images of men and women were made by the Babylonians and Egyptians, and worshipped by them:
and he begat sons and daughters of whom no account is given; according to a Jewish writer n, he died in the seventy fifth year of Abraham.
k Elmacinus, p. 29. apud Hottinger. p. 270. l Juchasin, fol. 135. 2. Shalshalet Hakabala, fol. 76. 1. Tzemach David, par. 2. fol. 3. 2. m Elmacinus, p. 20. Patricides, p. 14. apud Hottinger. p. 275, 276. n R. Gedaliah, Shalshalet, fol. 2. 1.