The foundational aspects of the U.S. Constitution include essential principles such as separation of powers, checks and balances, and the protection of individual rights. Drafted in 1787, the Constitution established a framework for the federal government, dividing authority among the legislative, executive, and judicial branches to prevent the concentration of power. The inclusion of the Bill of Rights ensured protections for civil liberties. These principles laid the groundwork for American democracy and governance, promoting stability and rule of law. The Constitution serves as a lasting symbol of democracy, influencing constitutions worldwide.