We found above at what an early period the migratory tribes of Arabia came into intercourse with the region of the Euphrates, and the valley of the Nile, how in both these places they purchased corn, implements, and weapons in return for their horses and camels, their skins and their wool, and the prisoners taken in their feuds. It was this exchange trade of the Arabian tribes which in the first instance brought about the intercourse of Syria with Babylonia and Egypt. Egypt like Babylonia required oil and wine for their population; metals, skins, and wool for their manufactures; wood for the building of houses and ships. For the Syrians and cities of the Phenicians the intercourse with the Arabians, and the lands of the Euphrates and Tigris, was facilitated by the fact that nations related to them in race and language dwelt as far as the border-mountains of Armenia and Iran and the southern coast of Arabia, and their trade with Egypt was facilitated in the same manner when Semitic tribes between 2000 and 1500 B.C. obtained the supremacy in Egypt and maintained it for more than three centuries. From the fact that Babylonian weights and measures were in use in Syria in the sixteenth century B.C., we may conclude that there must have been close trade relations between Syria and Babylonia from the year 2000 B.C.; and in the same manner in consequence of the conquest of Egypt by the shepherds more active relations must have commenced between Syria and the land of the Nile, at a period not much later. The supremacy which Egypt afterwards obtained over Syria under the Tuthmosis and Amenophis must have rather advanced than destroyed this; thus Sethos, towards the year 1400, used his successes against the Cheta, _i.e._ the Hittites, to have cedars felled on Lebanon. We may assume that even before this time, after the rise of the kingdom of the Hittites, _i.e._ after the middle of the fifteenth century, the cities of the Phenicians were no longer content to exchange the products of Syria, wine, oil, and brass, the manufactures of their own growing industry, purple stuffs and weapons, with the manufactures of Egypt, linen cloths, and papyrus tissues, glass and engraved stones, ornaments and drugs, on the one hand, and on the other hand with the manufactures of Babylon, cloths, ointments, and embroidered stuffs: they also carried Egyptian fabrics to Babylon, and Babylonian fabrics to Egypt. The trade of Phoenicia with Egypt and Babylonia was no longer restricted to the exchange of Phenician-Syrian products and fabrics with those of Egypt and Babylon: it was at the same time a middle trade between those two most ancient seats of cultivation, between Egypt and Babylonia. It cannot have been any detriment to this trade of the Phenicians that a second centre of civic life sprang up subsequently on the central Tigris in the growing power of Assyria. In the ruins of Chalah (p. 34) Egyptian works of art have been dug up in no inconsiderable numbers.