Answer
The Greek and Roman scholars were the first to make scientific conclusions based on factual information they had discovered from experiments and investigations therefore they gave medicine a scientific basis. They did not base their opinions and conclusions simply on superstitions and the visible affects of treatments and diseases.
Work Step by Step
We can see this from the works of Galen and Vesalius who had delved into the mechanics and anatomy of human beings and made their own conclusions with a scientific basis.
