Rong Cheng
Legendary Chinese minister of the Yellow Emperor, credited with inventing the armillary sphere and teaching Laozi
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4ort.xyz Knowledge Graph. (2026). Rong Cheng. Retrieved May 3, 2026, from https://4ort.xyz/entity/rong-cheng-q4181639
“Rong Cheng.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/rong-cheng-q4181639.
@misc{4ortxyz_rong-cheng-q4181639_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Rong Cheng}}, year = {2026}, url = {https://4ort.xyz/entity/rong-cheng-q4181639}, note = {Accessed: 2026-05-03}}
According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Rong Cheng — https://4ort.xyz/entity/rong-cheng-q4181639 (retrieved 2026-05-03)
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