The Chinese nation is the oldest nation in the world, and the Chinese civilization is one of the oldest civilizations in the world. China's written history is nearly 5,000 years old. Starting from 841 BC, there has been no interruption in documented chronicles for nearly 3,000 years. This is rare in the long history of mankind. Among the four major ancient civilizations in the world, only China's history has always been passed down in an orderly manner and has never been interrupted.