The Enlightenment
The Enlightenment was an 18th-century movement in Western philosophy and intellectual life generally, especially in the sciences. Some classifications also include 17th-century philosophy, usually called the Age of Reason.
The term can more narrowly refer to the intellectual movement of The Enlightenment, which advocated reason as the primary basis of authority. Developed in France, Britain and Germany, it influenced the whole of Europe including Russia and Scandinavia.
Politically the Enlightenment was marked by governmental consolidation, nation creation, greater rights for the common people, and a diminution of the influence of authoritarian institutions such as the nobility and the Church. The ideology of Republicanism led to the American revolution and the French Revolution. By 1800 or so the Enlightenment was replaced by the Romantic Era, with special impact on the arts.