In order to understand Postmodernism, we first have to understand what Modernism is. Modernism is a kind of umbrella term used to describe the quite radical changes in sociopolitical, philosophical and scientific concepts in the western world, which started in the 18th century, and which then eventually pretty much expanded to much of the rest of the world. The philosophical and scientific aspect of this zeitgeist started with the so-called Age of Enlightenment in the 17th and 18th centuries. Prior to this time, religion, philosophy and science were all considered pretty much parts of the same thing, tightly tied to each other. The approach to science was highly presuppositionalist (heavily driven by the religious and philosophical ideas of the time, with any scientific theories being controlled by these presuppositions). The Age of Enlightenment, however, caused a massive change in the philosophy of science. It was the time when the modern scientific method was developed. Religi...