During the Middle Ages, the scientific understanding of cosmology was a combination of the ideas of Aristotle, Ptolemy, and others. They believed in a fixed, motionless earth at the center of a series of cocentric spheres where there were perfectly spherical planets in circular orbits at a constant speed. This theory is known as the … Continue reading The Heliocentric Model of the Solar System, the Role of Religion, and the Enlightenment.
Marsilius of Padua was a philosopher who lived in the 13th and 14th centuries AD. He wrote a book called Defensor Pacis, which dealt with political and religious themes. He believed that the state was not subject to ecclesiastical oversight and in the autonomous state. He said that governments should not be subject to any … Continue reading Louis of Bavaria and the teachings of Marsilius of Padua