THE ROMAN WORLD
THE Roman world was bounded on the west by the Atlantic Ocean, on the north by the Rhine and the Danube, on the east by the Euphrates, on the south by the Desert of Sahara. The Egyptian world had been dependent on the Nile; the Assyrian and Chaldean world had been dependent on the Tigris and the Euphrates; the Roman world enclosed the Mediterranean Sea.
Outside of these boundaries lay the greater part of Africa, of Asia, and of Europe.
In Africa were savage people, whose descendants even to this day are separated from civilization by the wide barrier of the desert.
In Asia were three nations whose history antedated the time when Athens and Rome were country villages. With China and India, the Roman world was connected by an adventurous commerce. Every year merchantmen sailed down the Arabian Gulf and across the Indian