The old Mediterranean world out of which the Empire grew had consisted (before that Empire was complete—say, from an unknown most distant past to 50 B.C.) in two types of society: there stood in it as rare exceptions _States_, or nations in our modern sense, governed by a central Government, which controlled a large area, and were peopled by the inhabitants of many towns and villages. Of this sort was ancient Egypt. But there were also, surrounding that inland sea, in such great numbers as to form the predominant type of society, a series of _Cities_, some of them commercial ports, most of them controlling a small area from which they drew their agricultural subsistence, but all of them remarkable for this, that their citizens drew their civic life from, felt patriotism for, were the soldiers of, and paid their taxes to, not a nation in our sense but a _municipality_. These cities and the small surrounding territories which they controlled (which, I repeat, were often no more than local agricultural areas necessary for the sustenance of the town) were essentially the sovereign Powers of the time. Community of language, culture, and religion might, indeed, bind them in associations more or less strict. One could talk of the Phoenician cities, of the Greek cities, and so forth. But the individual City was always the unit. City made war on City. The City decided its own customs, and was the nucleus of religion. The God was the God of the city. A rim of such points encircled the eastern and central Mediterranean wherever it was habitable by man. Even the little oasis of the Cyrenæan land with sand on every side, but habitable, developed its city formations. Even on the western coasts of the inland ocean, which received their culture by sea from the East, such City States, though more rare, dotted the littoral of Algeria, Provence and Spain. Three hundred years before Our Lord was born this moral equilibrium was disturbed by the huge and successful adventure of the Macedonian Alexander.