The PreQin Period refers to time before the Qin Dynasty. It began from the time when ancient people appeared to 221 B. when Emperor Qin Shi Huang united the other six kingdoms.
It is said Emperor Yan and Emperor Huang had a great war in ancient times. Emperor Huang won and established “China”. All the emperors, including three Emperors and Five Sovereigns, adopted the demise from about 5700 B the seven powerful states of the Warring States Period and the five overlords in the Spring and Autumn Period. This period was called the Spring and Autumn and the Warring Periods. During the Warring Period, the Zhou Dynasty was replaced by the Qin Dynasty.
In PreQin Period, the academic thought was well developed and the culture got flourished, and many thinkers and schools appeared, thinkers including Confucius, Laozi, Han Feizi, and Mozi; schools including Confucianism, Taoism and Legalism. We now call it “a hundred schools of thought contend”.
In 1 800 years of the PreQin Period, ancient Chinese created splendid history and culture, among which the inscriptions in the Xia and Shang dynasties and the bronzes in the Shang Dynasty are both the historical signs of humans civilization. About 5 000 years ago, people had already mastered the technology to bronze smelting. About 3 000 years ago, people began to use ironware. And there were white earthware and colorful earthware. In the Spring and Autumn Period, people had known how to make steel.