In ancient times, the use of stained glass had a strict hierarchy and was generally used by the royal court. China glass has a long history of art, and the word "glass" began in the Western Han Dynasty. Many domestic documents believe that the predecessor of glass-glazed sand appeared in the Western Zhou Dynasty in China. According to the book Shangshu cited by Huang, glass is called "beautiful, beautiful". It refers not only to natural ornaments such as jewelry and orbs, but also to artificial imitation jewelry glass. "Silicate Dictionary" proposed that the word coloured glaze originated in the Western Han Dynasty and was transliterated from Sanskrit Vaidurya. It was first recorded in Shang and Zhou Dynasties. According to textual research, especially the legend of Tears of Stone originated in the year of Wednesday (the third year of Gou Jian, King of Yue). According to the general history of China, it should be 493 BC. The description of "color is the same as ice, and there is no way to separate dust" in Yuan Zhen's Ode to Coloured Glass in Tang Dynasty conveys the dazzling and attractive style of coloured glass.
The second origin of the name: Right Mahan of the Left Dynasty.
According to Shi Yukun's classic chivalrous case-solving novel "Three Chivalrous Men and Five Righteousness" and TV series "Bao Qingtian" in Qing Dynasty, the dynasty of figures and Mahan were Bao Qingtian's bodyguards. And folk customs. On holidays, paper-cut or paper paintings are posted on the left and right sides of the gate. The door gods are the left dynasty and the right Mahan, which means peace and good luck.