different nations which had been subdued by Roman arms and was held in absolute control by these same armies. It is estimated that these subdued national groups made up a population of approximately 100,000,000 people who paid tribute to and took orders from government headquarters in the city on the Tiber river. 2. Graeco-Roman World The civilization of the first Christian century is called “Graeco-Roman” because it was made up largely by the Greek and Roman element. The thoughts and habits of life