Oracle Bone Inscriptions is an ancient script in China, which is also called "Wen Qi", "Oracle Bone Inscriptions", "Yin Ruins" or "tortoise shell and animal bones". As an early form of Chinese characters, it is the oldest mature script of China Dynasty, which was first unearthed in Yin Ruins in Anyang City, Henan Province. It belongs to ancient Chinese, not the ancient or primitive language of other languages. The inscriptions on bronzes in Yin and Zhou Dynasties are also called Zhong Dingwen. Shang and Zhou Dynasties were the bronze age, with the tripod as the representative ritual vessel and the bell as the representative musical instrument. Zhong Ding is synonymous with bronze ware. After Qin Shihuang unified China (22 1 year ago), Xiao Zhuan implemented the policy of "writing is similar, cars are on the same track", and Prime Minister Li Si was responsible for the unified measurement. Based on the original script of the Qin Dynasty's Da Zhuan, Xiao Zhuan simplified it, canceled six other scripts and created a unified writing form of Chinese characters. It was popular in China until the end of the Western Han Dynasty (about 8 AD) and was gradually replaced by official script. But because of its beautiful font, it has always been favored by calligraphers. Because of its complex strokes and simple form, it is possible to add twists and turns and seal cutting at will, especially the official seal that needs anti-counterfeiting. Seal script was always used until the collapse of feudal dynasty and the emergence of modern new anti-counterfeiting technology.