The Xia Dynasty started in 2070 B.C. The center of Xia was the western section of modern Henan Province and the southern section of modern Shanxi Province with a sphere of influence that reached the northern and southern areas of the Yellow River. It was in this period that the slave society began to appear. The Xia Dynasty was overthrown by Shang. The Western Zhou (1046-771 B.C.) Dynasty saw further development of slave society. This era was followed by the Spring and Autumn (770-476 B.C.) and Warring States (475-221 B.C.) periods when silk production advanced and steel production started. This era also produced the philosophers Lao Zi, Confucius, Mencius and Mo Zi, as well as the military scientist Sun Wu, author of the Art of War.
The Xia Dynasty was founded in 2070 B.C. The center of its activities was the western section of modern Henan Province and the southern section of modern Shanxi Province, and its sphere of influence reached the northern and southern areas of the Yellow River. With the Xia Dynasty, China entered slave society. The following Shang (1600-1046 B.C.) and Western Zhou (1046-771 B.C.) dynasties saw further development of slave society. This era was followed by the Spring and Autumn (770-476 B.C.) and Warring States (475-221 B.C.) periods, characterized by the decline in power of the ruling house and struggles for power among regional powers, marking the transition from slave society to feudal society.
Chinese had mastered the technology of smelting bronze approximately 5,000 years ago and iron tools came into use during the Shang Dynasty, 3,000 years ago. White pottery and glazed pottery were produced. Silk production was considerably developed and the world’s first figured inlaid silk weaving technique appeared. During the Spring and Autumn Period steel production technologies made their debut. During the Spring and Autumn and the Warring States periods, there was a great upsurge of intellectual activity, producing many famous philosophers, such as Lao Zi, Confucius, Mencius and Mo Zi, and the well-known military scientist Sun Wu.