Cheomseongdae: the oldest surviving astronomical observatory in East Asia

xk3
Sun, 02 Mar 2025 02:42:15 +0000

Link URL: https://en.wikipedia.org/wiki/Cheomseongdae

Comments URL: https://tildes.net/~space/1mcz/cheomseongdae_the_oldest_surviving_astronomical_observatory_in_east_asia

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