The growth of a family into a tribe or people is in accordance with Arab rule. There are numerous historical instances of a single individual becoming the forefather of a tribe or a collection of tribes which under favourable conditions may develop into a nation. The tribe or people is known as the "sons" of their ancestor; his name is handed down from generation to generation, and the names of his leading descendants, the representatives of the tribe, are handed down at the same time. Where we speak of the population of a country, the Arab speaks of the "children" of a certain man. Such a mode of expression is in harmony with Semitic habits of thought. The genealogical method prevails alike in history and geography; a colony is the "daughter" or "son" of its mother-city, and the town of Sidon is the "first-born" of Canaan. Jacob had twelve sons, and his descendants were accordingly divided into twelve tribes. But the division was an artificial one; it never at any time corresponded exactly with historical reality. Levi was not a tribe in the same sense as the rest of his brethren; no territory was assigned to him apart from the so-called Levitical cities; and he represented the priestly order wherever it might be found and from whatever ancestors it might be derived. Simeon and Dan hardly existed as separate tribes except in name; their territories were absorbed into that of Judah, and it was only in the city of Laish in the far north that the memory of Dan survived. The tribe of Joseph was split into two halves, Ephraim and Manasseh, while Judah was a mixture of various elements--of Hebrews who traced their origin alike to Judah, to Simeon, and to Dan; of Kenites and Jerahmeelites from the desert of Arabia; and of Kenizzites from Edom. Benjamin or Ben-Oni was, as a tribe, merely the southern portion of the house of Joseph, which had settled around the sanctuary of Beth-On or Beth-el. Benjamin means the "Southerner," and Ben-Oni "the inhabitant of Beth-On." It is even questionable whether the son of Jacob from whom the tribe was held to be descended bore the name of Benjamin. Had the name of Esau not been preserved we should not have known the true name of the founder of Edom, and it may be that the name of the tribe of Benjamin has been reflected back upon its ancestor. In Goshen, at all events, the tribes of Israel would have been distinguished by the names of their actual forefathers. They would have been "the sons" of Reuben or Judah, of Simeon or Gad. But they were all families within a single family. They were all "Israelites" or "sons of Israel," and in an inscription of the Egyptian king Meneptah they are accordingly called _Israelu_, "Israelites," without any territorial adjunct. They lived in Goshen, like the Bedâwin of to-day, and their social organisation was that of Arabia.