Under Kublai Khan, who lived from about 1215 to 1294 B.C.E., the Mongols achieved the height of their power in Asia. After much fighting, he unified China under his control and established the Yuan dynasty, which would rule China for almost 100 years. While the Mongols failed to conquer Japan under his rule, they did take over Burma and Indochina. In the West, the Mongol Empire extended into modern-day Eastern Europe, and southward into the Middle East. Kublai Khan also entertained connections with the West, most famously with the Venetian Marco Polo, whose account of his time in the royal court is the most important Western primary source of the Khan's rule. Owing partially to the diffuse nature of his empire, he generally tolerated most religions, with the exception of Taoism. The Khan also engaged in major public works projects, including the palace that Samuel Taylor Coleridge would immortalize as "Xanadu."