By Jessie Szalay, Live Science Contributor
The Enlightenment, also known as the Age of Reason, was a philosophical movement that took place primarily in Europe and, later, in North America, during the late 17thand early 18thcentury. Its participants thought they were illuminating human intellect and culture after the "dark" Middle Ages. Characteristics of the Enlightenment include the rise of concepts such as reason, liberty and the scientific method. Enlightenment philosophy was skeptical of religion — especially the powerful Catholic Church — monarchies and hereditary aristocracy. Enlightenment philosophy was influential in ushering in the French and American revolutions and constitutions. Read more >>