1 may, 9651day Yuanmou man's tooth fossils were found in shangnabang village, Yuanmou county, Yunnan province. Yuanmou County is known as "the hometown of Yuanmou people". 1976 according to the paleomagnetic method, the life age is about1700,000 years ago, and the difference between before and after is not more than100,000 years (some scholars think that its age should not exceed 730,000 years, that is, it may be 600,000 years ago to 500,000 years ago or later).