CHAPTER XXIX

. THE CÆSARS BETWEEN THE SEA AND THE GREAT

PLAINS OF THE OLD WORLD

§ 1. A short catalogue of emperors 52

§ 2. Roman civilization at its zenith 529

§ 3. Limitations of the Roman mind 539

§ 4. The stir of the great plains 541

§ 5. The Western (true Roman) Empire crumples up 552

§ 6. The Eastern (revived Hellenic) Empire 560

## BOOK VI

CHRISTIANITY AND ISLAM

##