- SML | MED | LRG | BIG | HUG | Download
The Twenty-Four Solar Terms, knowledge in China of time and practices developed through observation of the sun’s annual motion
- Inscribed in 2016 (11.COM) on the Representative List of the Intangible Cultural Heritage of Humanity
Title as submitted EN: The observatory in Dengfeng of Henan Province was built in A.D. 1276. It was a sundial established by the astronomer Guo Shoujing used to measure shadows, observe the stars, and predict the time.