The Mongol conquests of the 13th century resulted in widespread and well-documented destruction. The Mongol army conquered hundreds of cities and villages and killed millions of people. One estimate is that about 11% of the world's population was killed either during or immediately after the Mongol invasions, around 37.75–60 million people in Eurasia . 
Early 14th century: Kao Ninga paints Monk Sewing (attributed) in the Kamakura period (Cleveland Museum collection). An account of Buddha's life, translated earlier into Greek by Saint John of Damascus and widely circulated to Christians as the story of Barlaam and Josaphat, became so popular that the two were venerated as saints.