The theory developed by Charles Darwin in 1859 in his book The Origin of Species is considered not only one of the greatest scientific discoveries ever but, also a system of knowledge that revolutionized the fundamental patterns of thought. This discovery was the theory of evolution. The theory of evolution shattered old beliefs and philosophies and imposed the necessity for building new ones. Two of the great ideologies that developed from Charles Darwin's theory of evolution are Darwinism and Social Darwinism. These two ideologies are often linked to each other and to some extent are intertwined in each other.

A brief biography of the life of Charles Darwin, including events in his childhood, his influences, and his travels that led to his theory of the origin of species.

The ways in which Charles Darwin's theory changed humankind included its effect on religion and the extension of his theories of evolution into other realms, such as social Darwinism.

Essay provides a discussion regarding Charles Darwin.