Black and white photo from a book of a Angbu-ilgu, a concave sundial shaped like a hemisphere and was first made 16 years' rule of King Sejong (1434). That was composed of the hour lines, the seasonal lines, sibanmyeon, Yeoungchim and the horizonal surface.

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Size: 4680px × 4481px
Location:
Photo credit: © World History Archive / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: 15th, angbu-ilgu, black, book, century, composed, concave, hemisphere, horizonal, hour, king, korea, lines, photo, rule, seasonal, sejong, shaped, sibanmyeon, sundial, surface, white, yeoungchim