In different states and in different eras, philosophers, scientists and researchers puzzled over the issue of the formation of life on Earth and the immediate appearance of man. This phenomenon is still a mystery, which our descendants will probably be able to solve. Today, there are a huge number of theories devoted to the question of how a person appeared on Earth and when exactly it happened.
Although there are a lot of versions and all of them suggest different periods and ways of the appearance of the
first people, all hypotheses can be divided into four large groups. The most common version of how humans appeared on Earth is the theory of evolution. It is her children who study in schools in biology classes, and most scientists adhere to this hypothesis.
According to evolutionary theory, a person has passed the difficult path of degeneration from primates to a modern erect individual. Modification occurred through natural selection, when the fittest and smartest survived. It happened in four stages. The first stage is the appearance of erect Australopithecus monkeys, who lived in herds and could use their hands to manipulate various objects. The second stage is the appearance of a pithecanthropus who has learned to use fire. The third stage is a Neanderthal man who resembled a man by the structure of the skeleton. The fourth stage is the appearance of modern people. It is assumed that it was in the Late Paleolithic era, that is, about 70 thousand years ago.
This theory does not fully explain how a person appeared on Earth, because scientists can not find confirmation of the manifestation of mutations that contribute to the improvement of the species. Usually they act the other way around, degrading individual genes.
Religious theories of the origin of man on Earth are widespread among believers. Each nation has its own version, but they all agree that people were created by God from nothing. According to the biblical version, Adam and Eve were created from clay, other religions have their own hypotheses. This theory does not require confirmation, the main thing is faith.
There is also a hypothesis about alien intervention, that is, life was born on our planet thanks to other civilizations. It turns out that man is a descendant of aliens who flew to our planet in ancient times. There are several versions here:
- A cross of the ancestors of man and aliens took place.
- People were produced in vitro.
- A clever man appeared thanks to genetic engineering.
- Extraterrestrial intelligence controls the evolutionary development of life.
The theory of spatial anomalies also argues about how a person appeared on Earth. It resembles an evolutionary hypothesis, but a specific program for the development of random factors and life is added here. It turns out that there is some kind of humanoid triad or spatial anomaly. If the conditions are favorable, then a humanoid mind will appear.
Scientists have not fully figured out when a person appeared on Earth. According to evolutionary theory, this happened about 70 thousand years ago, but the religious version says that the first people appeared only 7.5 thousand years ago. Truth, as always, in the middle, perhaps in the future, humanity will be able to reveal the secrets of its origin.