The Mongol invasions in the first half of the thirteenth century led to profound and shattering changes to the historical trajectory of Islamic West Asia. As this new volume in The Idea of Iran series suggests, sudden conquest from the east was preceded by events closer to home which laid the groundwork for the later Mongol success. In the mid-twelfth century the Seljuq empire rapidly unravelled, its vast provinces fragmenting into a patchwork of mostly short-lived principalities and kingdoms. In time, new powers emerged, such as the pagan Qara-Khitai in Central Asia; the Khwarazmshahs in Khwarazm, Khorosan and much of central Iran; and the Ghurids to the southeast. Yet all were blown away by the Mongols, who faced no resistance from a sufficiently muscular imperial competitor and whose influx was viewed by contemporaries as cataclysmic. Distinguished scholars including David O Morgan and the late C E Bosworth here discuss the dynasties that preceded the invasion - and aspects of their literature, poetry and science - as well as the conquerors themselves and their rule in Iran from 1219 to 1256.

This volume traces the second great expansion of the Islamic world eastwards from the eleventh century to the eighteenth. As the faith crossed cultural boundaries, the trader and the mystic became as important as the soldier and the administrator. Distinctive Islamic idioms began to emerge from other great linguistic traditions apart from Arabic, especially in Turkish, Persian, Urdu, Swahili, Malay and Chinese. The Islamic world transformed and absorbed new influences. As the essays in this collection demonstrate, three major features distinguish the time and place from both earlier and modern experiences of Islam. Firstly, the steppe tribal peoples of central Asia had a decisive impact on the Islamic lands. Secondly, Islam expanded along the trade routes of the Indian Ocean and the South China Sea. Thirdly, Islam interacted with Asian spirituality, including Hinduism, Sikhism, Buddhism, Taoism and Shamanism. It was during this period that Islam became a truly world religion.

This volume traces the second great expansion of the Islamic world eastwards from the eleventh century to the eighteenth. As the faith crossed cultural boundaries, the trader and the mystic became as important as the soldier and the administrator. Distinctive Islamic idioms began to emerge from other great linguistic traditions apart from Arabic, especially in Turkish, Persian, Urdu, Swahili, Malay and Chinese. The Islamic world transformed and absorbed new influences. As the essays in this collection demonstrate, three major features distinguish the time and place from both earlier and modern experiences of Islam. Firstly, the steppe tribal peoples of central Asia had a decisive impact on the Islamic lands. Secondly, Islam expanded along the trade routes of the Indian Ocean and the South China Sea. Thirdly, Islam interacted with Asian spirituality, including Hinduism, Sikhism, Buddhism, Taoism and Shamanism. It was during this period that Islam became a truly world religion.