Curiosity, the natural instinct is the basis of all inventions and evolution in every field of knowledge. The fundamental fields of study that seek to understand how the world and universe around us works remained the focus of investigations since the human species came into existence.
Evolution of species starts with the origin of life on earth, but the facts about evolution were established after the science itself evolved. From the very beginning human needs compelled us for fact finding and we started using philosophy and logic to determine various phenomenon of nature.
In due course of time our experiences led us to experimentation to prove and establish the facts. As a result of continued struggle and intentions to find the truth behind each phenomenon the SCIENTISTS evolved from PHILOSOPHERS and they established some rules (SCIENTIFIC METHODS) for fact finding. Modern science depends on the generation of trust worthy facts by experiments which results can be seen by everyone.
Scientists have rejected all the previous themes and rely only on the experimentation that is demonstrable, reproducible, controlled and can be reviewed for validity and integrity. This method of discovering facts turned out to be so powerful that science and technology created the world as we see it today.