From an extreme antiquity of people interested a question of their origin. Throughout centuries and human evolution there are a lot of thinkers, scientists, various researchers stated the points of view about origin of human race. Many legends, legends and the truth which were opened by outstanding people of different generations are devoted to this subject, starting with bible heroes and finishing contemporaries. Today there are three main theories explaining emergence of the person on Earth.
Theory of evolution
The evolutionary theory of emergence of mankind is the most widespread in modern scientific community.
This theory assumes that the person occurred from the highest primacies, by gradual modification and under the influence of external factors. Adherents of the theory of evolution operate with a set of proofs, however, not all from them can be apprehended unambiguously.
According to the theory of evolution, there were three stages of evolution of mankind: periods of consecutive existence of antropoidny ancestors of the person, existence of the most ancient people and development of the modern person.
Theory of creation
Views which were based that the person was created by God or the principal reason appeared much earlier, than the theory of evolution. In different philosophical doctrines, the act of creation of the person was attributed to various deities. The most important proof of this theory is similarity of myths of absolutely different people in which it is told about origin of the person. Theories of creation or creationism adhere followers of almost all religious trends extended today. Creationists reject evolution and give indisputable facts in own favor. For example, it is reported that experts in computer facilities could not reproduce human sight. Even Darwin recognized that a human eye could not be developed by natural selection. The area of researches which is aimed at finding scientific proofs of divine creation of the world is called "scientific creationism". However, scientific community of the theory of scientific creationism are not recognized as convincing.
Theory of external intervention
According to this theory, appearance of people on Earth is connected with intervention of other civilizations. Some consider people lineal descendants of representatives of extraterrestrial civilizations. Ancestors of modern people landed to Earth in prehistoric times. There is also an assumption that people arose on Earth by crossing of aliens with ancestors of the modern person. In various compositions on the theory of external intervention, civilizations from the planetary system of Sirius, the planet from Scales, the Scorpion and the Maiden as immediate ancestors or producers of people of Earth are mentioned. Pictures of Mars in which it is possible to see the remains of the buildings very similar to the Egyptian pyramids are provided as proofs of this theory. In essence, the theory of extraterrestrial intervention a little in what differs from the theory of divine creation of the person, only here as god representatives of another, more developed civilizations act.