"According to the tradition preserved in Genesis, it was the promotion of Jacob's son, Joseph, to be viceroy of Egypt, that brought about the migration of the sons of Israel from Canaan to Goshen. The story goes that this Joseph was sold as a slave by his brothers, and after many changes of fortune received the vice-regal office at Pharaoh's hands through his skill in interpreting dreams. Famine drives his brothers--and afterwards his father--to him, and the Egyptian prince gives them the land of Goshen to live in. _It is by imagining all this that the legend tries to account for the fact that Israel passed some time in Egypt._ But we must look for the real explanation in a migration of certain tribes which could not establish or maintain themselves in Canaan, and were forced to move further on. "We find a passage in Flavius Josephus, from which it appears that in Egypt, too, a recollection survived of the sojourn of some foreign tribes in the north-eastern district of the country. For this writer gives us two fragments out of a lost work by Manetho, a priest, who lived about 250 B. C. In one of these we have a statement that pretty nearly agrees with the Israelitish tradition about a sojourn in Goshen. _But the Israelites were looked down on by the Egyptians as foreigners, and they are represented as lepers and unclean._ Moses himself is mentioned by name, and we are told that he was a priest and joined himself to these _lepers_ and gave them laws."[55:1] To return now to the story of the Red Sea being divided to let Moses and his followers pass through--of which we have already seen one counterpart in the legend related of Bacchus and his army passing through the same sea dry-shod--there is another similar story concerning Alexander the Great. The histories of Alexander relate that the Pamphylian Sea was divided to let him and his army pass through. Josephus, after speaking of the Red Sea being divided for the passage of the Israelites, says: "For the sake of those who accompanied Alexander, king of Macedonia, who yet lived comparatively but a little while ago, the Pamphylian Sea retired and offered them a passage through itself, when they had no other way to go . . . _and this is confessed to be true by all who have written about the actions of Alexander_."[55:2] He seems to consider both legends of the same authority, quoting the latter to substantiate the former. "Callisthenes, who himself accompanied Alexander in the expedition," "wrote, how the Pamphylian Sea did not only open a passage for Alexander, but, rising and elevating its waters, did pay him homage as its king."[55:3]