History of the first day of junior high school

This is the foundation of the Xia Dynasty: 2070 BC.

The earliest written record before is the "Han rebellion" in the Western Zhou Dynasty in 84 BC/KLOC-0 BC. After the discovery, the Xia Dynasty was established in 2070 BC from mid-summer. 1229 years in advance.

Written history is not the earliest written discovery, so don't confuse the subject. Oracle Bone Inscriptions, discovered in Yin Ruins of Henan Province in the late Qing Dynasty, is a record of divination in Shang Dynasty, which has left rich materials for studying the history and ancient Chinese characters of Shang Dynasty.