# Cheomseongdae — WHE Definition Discussion

**URL:** <https://community.worldhistory.org/t/cheomseongdae-whe-definition-discussion/2943>\
**Category:** WHE Articles\
**Created:** [October 11, 2016, 1:01pm UTC](https://community.worldhistory.org/t/cheomseongdae-whe-definition-discussion/2943 "2016-10-11T13:01:38Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![markzcartwright](https://yyz2.discourse-cdn.com/flex034/user_avatar/community.worldhistory.org/markzcartwright/32/35_2.png) [@markzcartwright](https://community.worldhistory.org/u/markzcartwright)\
**Post date:** [October 11, 2016, 1:01pm UTC](https://community.worldhistory.org/t/cheomseongdae-whe-definition-discussion/2943/1 "2016-10-11T13:01:38Z")

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Cheomseongdae (Chomsongdae) is a 7th-century CE observatory tower located in Gyeongju, the capital of the Silla Kingdom of ancient Korea. It is the oldest surviving astronomical observatory in East Asia and is listed as no. 31 on the official list of National Treasures of Korea.

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_This is a companion discussion topic for the original content at [https://www.worldhistory.org/Cheomseongdae/](https://www.worldhistory.org/Cheomseongdae/)._

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**Author:** ![markzcartwright](https://yyz2.discourse-cdn.com/flex034/user_avatar/community.worldhistory.org/markzcartwright/32/35_2.png) [@markzcartwright](https://community.worldhistory.org/u/markzcartwright)\
**Post date:** [July 28, 2026, 9:42pm UTC](https://community.worldhistory.org/t/cheomseongdae-whe-definition-discussion/2943/2 "2026-07-28T21:42:18Z")

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