Genesis of language in hypotheses and concepts of linguists

In the article the theoretical principles of the origin of the language are considered, namely: the hypothesis of its divine origin, biological (sounds imitation, exclamation, or reflexetive, sound reproduction, the theory of gestures, evolutionary), social (the theory of social contract, the theory of labor contract). The nature and essence of language as a biological-psychic phenomenon are determined. The phenomenon of language production as a unique gift, inherent only to a person, is analyzed in a complex way. The causes of sounds emergence, syllables, words are found out. It is verified that human speech is inextricably linked with activity and arises from its mental and intellectual abilities. It is proved that sound language is a multi-level system with its own requirements and constraints on all levels - from phonetic and graphic to grammatical and semantic.