Voyager from Xanadu

Toward the end of the thirteenth century, at about the time Marco Polo was being received by the great Khubilai Khan, a Nestorian Christian monk from China called Rabban Sauma was making the reverse journey from the Mongol capital (what is now Beijing) to Jerusalem. Upon reaching Baghdad—the first traveler to arrive from China—Sauma learned that his pilgrimage could not be fulfilled because of Isl...