The significance of the French Revolution in shaping modern democracy lies in its challenge to monarchical authority and the promotion of ideas such as liberty, equality, and fraternity. The revolution dismantled the feudal structure and laid the groundwork for the establishment of democratic principles, emphasizing popular sovereignty and individual rights. Its key documents, like the Declaration of the Rights of Man and of the Citizen, inspired future democratic movements and forms of governance worldwide. The French Revolution also led to the rise of nationalism, fundamentally altering the political landscape in Europe and influencing the trajectory of modern political thought and democratic governance.