A map recently donated to the Hiroshima Prefectural Museum of History has been dated to the mid-14th century, making it one of the oldest maps of Japan, The Mainichi reports. “It was previously believed that a map in the ‘Shugaisho’ encyclopedia from 1548 was the oldest known map covering the whole of Japan. While Ninna-ji temple in Kyoto also holds a map of Japan dating to 1305, it does not cover the western part of the country.” The map is on display at the museum until September 24. [Tony Campbell]