What impact did enlightenment ideas have on the spread of democracy in the 18th century

The Enlightenment during the 18th century is also called Age of Reason. The impact of this includes the rise such as reason, freedom, and scientific journals. Enlightenment philosophy influence in leading the French and American revolutions and constitutions, because of it was the origin of some ideas by the Founding Fathers. We can see that it is influential in the Declaration of Independence, they believed that monarchy did not make awareness as a system of government.