Which country can best argue that it was basically born out of rationalist thought in the Enlightenment era?

France can best argue that it was born out of rationalist thought in the Enlightenment era due to its influential Enlightenment thinkers like Voltaire, Rousseau, and Diderot, who emphasized reason, science, and individual rights. The French Revolution in 1789 further solidified these ideals by promoting liberty, equality, and fraternity.