Where humans originated is a question debated by historians, archaeologists and biologists in the past. Before the advent of molecular anthropology, many Chinese historians believed that China was also one of the origins of mankind. However, with the continuous development of science and technology, many people also realize that human beings can only have the same origin, and can never have multiple origins. And there are fewer and fewer calls for Asian origins.
In the past, archaeologists have disputed the origin of human beings in one place and the origin theory of multiple places. Some multi-originists believe that Africa is one of the places of origin of mankind, and Asia is also one of the places of origin of mankind. But according to the basic theory of biology, different species all originated from a common ancestor, and the creatures of the same species must also originate from the same common ancestor. This is to say that from the basic principle, the theory of the origin of many places of human beings is rejected, and the origin of human beings must originate from the same ancestor. Currently, reproductive isolation occurs in all humans, while humans and all other species have reproductive isolation. This also shows that all human beings have a certain connection in blood.
In the past, people judged the origin of humans mainly based on ancient human fossils unearthed underground. Africa unearthed human fossils is the world's most continents, these fossils include a variety of forest apes, ground apes, apes, apes, apes, apes, ancients, but also including skeletons, a variety of stone tools and bone tools, tombs, from 6 million years ago to 10,000 years ago, basically formed a complete evolutionary chain. Therefore, the vast majority of archaeologists in the world believe that Africa is the origin of mankind. However, some scholars in Asia have also proposed that fossils such as Yuanmou man, Javanese man, and Peking ape man also appeared in Asia. And many ordinary people in China also believe that the Yuanmou people are the ancestors of chinese people. Therefore, archaeology alone cannot quell the controversy.
In the second half of the 20th century, with the promotion of human genetic engineering and molecular anthropology, people could finally establish connections between humans by testing human DNA. By examining DNA samples from all over the world, scientists have found that all humans around the world have a common ancestor, which lived 200,000 years ago. With the exception of Africa, common ancestors in other regions appeared about 70,000 to 50,000 years ago. Moreover, all humans have African gene mutations, while Africans have no other continents. This means that humans originated in Africa, while modern humans from other continents migrated to the rest of the world about 70,000 to 10,000 years ago.
Since the ancestors of modern humans originated in Africa 200,000 years ago and migrated to the rest of the world from more than 50,000 years ago, how can we explain the fossils unearthed around the world from hundreds of thousands of years ago and 1 million years ago? Originally, these ancient ape fossils and human fossils migrated from Africa to all parts of the world, but the time of migration was different. But around 100,000 years later, the Asian continent generally entered the Ice Age. At this time, the ancient humans who migrated to Eurasia in the early days were basically destroyed. In China, there was a gap in human fossils from 100,000 to 50,000 years ago.
Of course, there are still some ancient humans who have survived. When the ancestors of modern humans (late Homo sapiens) arrived in Eurasia, they clashed with the remnants of Homo erectus and early Homo sapiens, and were able to replace these ancient humans because late Homo sapiens were more evolved. Of course, there will also be some blending situations. In 2010, scientists obtained Neanderthal genome-wide data, which proved that modern Eurasians have 1% to 4% Neanderthal genes, and the size of modern gene fragments shows that the time of hybridization occurred about 50,000 years ago, coinciding with the time of modern migration from Africa.