This alternate history map shows the Holy Persian Empire, on of the many successor states of the Mongolian Empire. Temudjin, better known as Chinggis Khan, converts to the Nestorian branch of Christianity during his time with the Kereit tribe, founding a Christian-Mongolian dynasty.
The main thrust in the west goes more to the Holy Land with side shows in Europe; under Ögedei Khan and Paolos Hülagü Khan the Sultanates in the Middle East are crushed and Christianity is restored. Great Khan Yohannis Möngke, and later Great Khan Petros Qurutai of North China, confirm the rule of Paolos Hülegü Khan over the Holy Land.
Over the time the Great Empire breaks up, but its most powerful successors, the Holy Persian Empire, the Delhian Empire and the Chinese Yuan Empire (both with a strong Christian influence) have still a large influence.