But we must be careful not to imagine that this represents a mere transplantation of southern culture on a rude northern stock. The whole region to the east of the Mediterranean was just as fitted to develop a civilisation as the valley of the Nile. It swarmed with peoples having the latest Neolithic culture, and, as they advanced, and developed navigation, the territory of many of them became the high road of more advanced peoples. A glance at the map will show that the easiest line of expansion for a growing people was westward. The ocean lay to the right of the Babylonians, and the country north and south was not inviting. The calmer Mediterranean with its fertile shores was the appointed field of expansion. The land route from Egypt lay, not to the dreary west in Africa, but along the eastern shore of the Mediterranean, through Syria and Asia Minor. The land route from Babylon lay across northern Syria and Asia Minor. The sea route had Crete for its first and most conspicuous station. Hence the gradual appearance of civilisation in Phoenicia, Cappadocia, Lydia, and the Greek islands is a normal and natural outcome of the geographical conditions. But we must dismiss the later Asiatic civilisations, whose remains are fast coming to light, very briefly. Phoenicia probably had less part in the general advance than was formerly supposed. Now that we have discovered a powerful civilisation in the Greek islands themselves, we see that it would keep Tyre and Sidon in check until it fell into decay about 1000 B.C. After that date, for a few centuries, Phoenicia had a great influence on the development of Europe. The Hittites, on the other hand, are as yet imperfectly known. Their main region was Cappadocia, where, at least as far back as 1500 B.C., they developed so characteristic a civilisation, that its documents or inscriptions are almost undecipherable. They at one time overran the whole of Asia Minor. Other peoples such as the Elamites, represent similar offshoots of the fermenting culture of the region. The Hebrews were probably a small and unimportant group, settled close round Jerusalem, until a few centuries before the Christian Era. They then assimilated the culture of the more powerful nations which crossed and recrossed their territory. The Persians were, as we saw, a branch of the Aryan family which slowly advanced between 1500 and 700 B.C., and then inherited the empire of dying Babylon.