가본 적도 없는 땅인데, 옛 사람들은 어떻게 세계 지도를 만들었을까?

#WorldMap #AncientHistory #WorldHistory There were people who drew lands they had never visited on maps, without satellites or compasses. From scholars who measured the circumference of the Earth using only a shadow in a well, to sailors who risked their lives crossing the oceans on a single star, and even Joseon officials who mapped the African coastline 90 years before Columbus, We follow the journey of humanity in capturing the world on a single map. However, even after completing latitudes, coordinates, and nautical charts, there remained one blank space that was never filled. Let's follow the mystery of that blank space to the very end. 📌 References The British Museum, Online Collection, "Clay tablet map of the world" (BM 92687) Encyclopaedia Britannica, "Babylonian Map of the World" Wikipedia, "History of cartography" / "Anaximander" / "Eratosthenes" / "Geography (Ptolemy)" / "Hereford Mappa Mundi" / "Piri Reis map" / "Gangnido" Hereford Cathedral, Introductory materials for "Hereford Mappa Mundi" Encyclopaedia Britannica, "Portolan chart" Smithsonian Ocean, "Stick Charts: Traditional Navigation Tools" Library of Congress, Geography and Map Division, "Yu Ji Tu" Encyclopedia of Korean Culture, "Honil Gangni Yeokdaegukdo Jido" Historic England, "The Longitude Problem" Dava Sobel, 1995, Longitude: The True Story of a Lone Genius Who Solved The Greatest Scientific Problem of His Time, Walker and Company ※ This video is a reconstruction based on various publicly available academic and museum materials, including the source above. If you require the exact original text, please look up the artifact names, personal names, and dates mentioned in the video yourself. #Eratosthenes #Ptolemy #MapOfTheWorldAndTheWorlds #LongitudeProblem #JohnHarrison #Babylonia #PortolanoChart #Archaeology #JoseonHistory #LibraryOfHumanity