premise: Marco Polo traveled to Korea.
hypothesis: Korea . Goryeo ( also spelled as Koryŏ ) , whose name developed into the modern exonym `` Korea '' , was a highly cultured state that created the world 's first metal movable type in 1234 . Marco Polo . His travels are recorded in Livres des merveilles du monde ( Book of the Marvels of the World , also known as The Travels of Marco Polo , c. 1300 ) , a book that described to Europeans the wealth and great size of China , its capital Peking , and other Asian cities and countries . He learned the mercantile trade from his father and uncle , Niccolò and Maffeo , who travelled through Asia and met Kublai Khan .