Book (Practical) History and geography Underwater Archeology of the Mongol Invasion

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History and Geography
Historical and Cultural Library 478 / The Takashima Submarine Ruins in Nagasaki Prefecture, where the former 寇船 that sank during the Mongol invasion in the Kamakura period was discovered. There is great expectation for the elucidation of the shipbuilding technology and the cargo of the time, but how was the research conducted in the difficult environment of underwater? This paper introduces the scene of the site, which was carried out by trial and error such as acoustic exploration, excavation work by divers, image photographing, actual measurement drawing and preservation of the hull. The technique of underwater archaeology and future possibility are explored.