Chang Hong
# Chang Hong

Chang Hong (simplified Chinese: 苌弘; traditional Chinese: 萇弘, also known as simplified Chinese: 苌宏; traditional Chinese: 萇宏, given name Shu Chinese: 叔, 582? BC - 492 BC) was a native of Zizhou in the ancient region of Shu. He was a famous scholar, politician, educator and astronomer in ancient China. He was well-versed in chronology, astronomy and was proficient in musical theory. .

He was murdered by Zhao Jianzi. Zhuangzi claimed that his blood turned into green jade three years after his death. To this day, the Chinese still use the expression bixue (Chinese: 碧血; lit. 'jade green blood') to refer to the sacrifices or wrongful deaths of upright people.

