The idea that religion should be kept separate from other aspects of life, leading the church to gradually lose its control over education and medicine
The printing press, developed in 1440, allowed for quicker and cheaper book production, reducing the church's control over ideas and enabling scientific journals
Argued against Galen and Hippocrates, believed disease came from outside the body, encouraged close observation of symptoms, treated the disease not just symptoms, helped set up a more scientific approach to medicine