Can one book really change the world? a handwritten manuscript by Marco Polo in 1288 did. Polo, son of a wealthy Italian merchant, wrote about his incredible experiences traveling to China with his father and uncle on a trade expedition, and also about his adventures as an envoy of Kublai Khan, the ruler of most of China. Polo's book became a bestseller in Europe in the fourteenth century. It was copied over and over by hand, translated into fourteen...