Construction of Cheomseongdae observatory
- Period
- c. AD 640
- Region
- Korea
- Place
- 서라벌 (경주)
- Category
- Science
Cheomseongdae is an astronomical observatory in Gyeongju, South Korea. Cheomseongdae is the oldest surviving astronomical observatory in Asia, and possibly even the world. It was constructed during the Silla period, during the reign of Queen Seondeok. Cheomseongdae was designated as the country's 31st national treasure on December 20, 1962. It is part of Gyeongju Historic Areas, a UNESCO World Heritage Site.
Sources: Wikipedia — Cheomseongdae · CC BY-SA 4.0
Earlier and later events nearby
- 109–108 BCHan conquest of Gojoseon
- AD 527Martyrdom of Ichadon; Silla adopts Buddhism
- c. AD 640Construction of Cheomseongdae observatoryThis page
- AD 645–668Goguryeo–Tang War
- AD 663Battle of Baekgang
- AD 670–676Silla–Tang War
Who ruled this land
States that held this place in the historical borders data (Cliopatria). Years are approximate, as fine as the data's snapshots (every few years to a century). Tap to open the map for that year.