The U.S. Constitution is a cornerstone of modern governance, establishing a framework for democracy that has influenced numerous countries worldwide. Ratified in 1788, it introduced principles such as separation of powers, checks and balances, and individual rights through the Bill of Rights. By creating a federal government with limited powers, the Constitution laid the groundwork for a political system where citizens have a say in governance. Its adaptability has allowed it to endure for centuries, serving as a model for constitutional democracies and providing a foundation for legal frameworks that uphold justice, liberty, and equality.