ABSTRACT
The most important general trend within the part of evolution was the development of the nervous system, permitting more rapid communication between the different parts of the body. With the development of the large human brain and cortex another major evolutionary leap occurred, as significant as the emergence of life. This was the emergence of self-reflective consciousness. An important attribute of conscious beings is the ability to form internal models of the world they experience; the greater the consciousness, the more complex the models. The emergence of self-reflective consciousness is to some degree tied in with the development of verbal language. Language allowed to communicate more widely and more fully. The development of language was also significant in that it led to the exchange of information between individuals. Humanity has also developed writing, which is the ability to store language in symbolic form.
