Genesis 11:16-21 meaning

The line of Peleg is the fifth generation in the journey from Shem to Abram. Peleg's father Eber lived a total of 464 years. This makes him the longest living person recorded in the Bible who was born after the flood. Peleg's brother Joktan was the ancestor of Arabian tribes while Peleg is the forefather of northwest Mesopotamian families.[1] Peleg's son Reu is not identified with any specific location. His name means "friend." Reu's son Serug is the name of an ancient city (Sarugi) west of Haran in northwestern Mesopotamia. The city of Sarugi, in the Balikh Valley, is the site of the modern village of Suruc on one of the important Near Eastern trade routes. [This is likely a vestige of the settlement of Serug in the area of northwestern Mesopotamia.]

[1] Mathews, K. A. Genesis 1-11:26. Vol. 1A. Nashville: Broadman & Holman Publishers, 1996. Print. The New American Commentary.