Why did you take off your blue shirt and put on a red shirt? It's 36 years old.

Because Yuan Tiangang said in Song of Yuan Tiangang in the late Sui and early Tang Dynasties: His own flesh and blood is the noblest, and he entered the surname of Chunmen early. When the year will be thirty-six, the blue shirt will be taken off and put on a red robe. It means: the noblest thing in life is a flesh-and-blood body, born in a rich family. When the age is about to enter 36, it is necessary to increase the rank and rank.

In ancient times, red robes and blue robes mostly referred to official uniforms. Officials with more than five grades wear red official uniforms, and officials with less than six grades wear blue official uniforms (that is, blue/green official uniforms).

The different colors of ancient clothes represent a person's different identities. Officials above the third grade wear purple robes and carry goldfish bags; Officials with more than five items wear robes (red robes) and bring whitebait bags; Officials below level 6 wear green robes and do not bring fish bags. Officials with high positions and low ranks still wear the original products. If you are a prime minister and don't win the third prize, you must carry the words "Give Zijin Fish Bag" in your official title.

yuan tiangang

A native of Chengdu, Yizhou, he was a metaphysician and astronomer in the late Sui and early Tang Dynasties.

Yuan Tiangang is a little lonely and poor. Sui dynasty served as an official order, and Tang dynasty served as a fire pit order. In the eighth year of Zhenguan (634), Emperor Taizong heard his name and called him to the DPRK, which was comparable to Yan Junping, a scholar of the Western Han Dynasty.

Yuan Tiangang is an expert in physiognomy. According to the Records of the Old and New Records of the Tang Dynasty, he once visited the young Wu Zetian and said that he was "the master of the world".