The Tang dynasty is often called China’s “golden age,” a period of commercial, religious, and cultural connections from Korea and Japan to the Persian Gulf, and a time of unsurpassed literary creativity. Mark Lewis captures a dynamic era in which the empire reached its greatest geographical extent under Chinese rule, painting and ceramic arts flourished, women played a major role both as rulers and in the economy, and China produced its finest lyric poets in Wang Wei, Li Bo, and Du Fu.

The Chinese engaged in extensive trade on sea and land. Merchants from Inner Asia settled in the capital, while Chinese entrepreneurs set off for the wider world, the beginning of a global diaspora. The emergence of an economically and culturally dominant south that was controlled from a northern capital set a pattern for the rest of Chinese imperial history. Poems celebrated the glories of the capital, meditated on individual loneliness in its midst, and described heroic young men and beautiful women who filled city streets and bars.

Despite the romantic aura attached to the Tang, it was not a time of unending peace. In 756, General An Lushan led a revolt that shook the country to its core, weakening the government to such a degree that by the early tenth century, regional warlordism gripped many areas, heralding the decline of the Great Tang.

Brett Whalen explores the compelling belief that Christendom would spread to every corner of the earth before the end of time. During the High Middle Ages—an era of crusade, mission, and European expansion—the Western followers of Rome imagined the future conversion of Jews, Muslims, pagans, and Eastern Christians into one fold of God’s people, assembled under the authority of the Roman Church.

Starting with the eleventh-century papal reform, Whalen shows how theological readings of history, prophecies, and apocalyptic scenarios enabled medieval churchmen to project the authority of Rome over the world. Looking to Byzantium, the Islamic world, and beyond, Western Christians claimed their special place in the divine plan for salvation, whether they were battling for Jerusalem or preaching to unbelievers. For those who knew how to read the signs, history pointed toward the triumph and spread of Roman Christianity.

Yet this dream of Christendom raised troublesome questions about the problem of sin within the body of the faithful. By the late thirteenth and fourteenth centuries, radical apocalyptic thinkers numbered among the papacy’s most outspoken critics, who associated present-day ecclesiastical institutions with the evil of Antichrist—a subversive reading of the future. For such critics, the conversion of the world would happen only after the purgation of the Roman Church and a time of suffering for the true followers of God.

This engaging and beautifully written book offers an important window onto Western religious views in the past that continue to haunt modern times.