Final answer:
The Enlightenment had the most influence on modern democratic governments, with early Enlightenment philosophers advocating ideals such as reason, liberty, progress, tolerance, and constitutional government.
Step-by-step explanation:
The Enlightenment of 17th-century Europe had the most immediate impact on the framers of the United States Constitution. The ideas and practices that led to the development of the American democratic republic owe a debt to the Ancient Legalist Doctrine, the Protestant Reformation, and the Observations of Machiavelli. However, the Enlightenment had the most influence on modern democratic governments, with early Enlightenment philosophers advocating ideals such as reason, liberty, progress, tolerance, and constitutional government.