How many years has human history been up to now?

Early Homo sapiens used to be called the ancients, living 250,000 to 40,000 years ago. Homo sapiens, also known as human beings, is the only species that exists under human beings. Morphological characteristics are more progressive than those of Homo erectus. It is divided into early homo sapiens and late homo sapiens.

The main feature is large brain capacity, 1300ml or more; The brow ridge is developed, the forehead is inclined, the occipital bone is prominent, the nose is wide and flat, and the jaw is prominent. It is generally believed that it evolved from Homo erectus. Late Homo sapiens used to be called a new human, and he was a modern man in anatomical structure.

Extended data Homo sapiens is an opportunistic omnivore, which shows outstanding originality in extracting, producing, processing and preserving food. Humans are the only species that can control or fire, and all known living human groups are cooking.

Regional differences in diet are influenced by the availability of specific environment, cultural traditions (such as food preference and avoidance) and genetic factors. The continuous existence of lactase enables some people to eat milk and dairy products in their lifetime, which is a recent adaptive adjustment to dairy consumption and will only play a role in people with dairy farming tradition.

References:

Baidu encyclopedia-homo sapiens