Volume IV, Part One covered the dynastic, political and military history of Central Asia. Part Two covers the cultural achievements of the various peoples of this immense region: arts and crafts, languages, scripts, literature, architecture, music, science, medicine and technology.

The borders of the Central Asian heartland of steppes, desert and forests fluctuated over the period 750-1500. Af first, the Islamic faith and culture had to compete with older established faiths in Central Asia such as Soroastrianism, Manichaeism, Christianity and Buddhism. For over four centuries, the advance of Islam was gradual, but it was to have far-reaching consequences as it extended north-eastwards.

During the fourteenth and fifteenth centuries, Islam and Islamic culture achieved dominance over all its rivals in Transoxania and the area to its north and also established a firm footing in north-western India and southwards through the subcontinent. Thus arose a unique moment of history for the interchange of ideas and aspects of material culture, in which Central Asia acted as in intermediary. The faiths of the West and the South, of the Near East, of the Iranian world and the Indian, now had an impact on the lands further east and north. In the reverse direction, commerce, highly skilled crafts such as ceramics, and technological achievements such as silk production and wood-block printing, spread from China to the Islamic world and thence to Europe.

Also available:
Volume I: The Dawn of Civilization: Earliest Times to 700 B.C.
Volume II: The Development of Sedentary and Nomadic Civilizations: 700 B.C. to A.D. 250
Volume III: The Crossroads of Civilization: A.D. 250 to 750
Volume IV: The Age of Achievement: A.D. 750 to the End of the Fifteenth Century