Which major document outlined the framework of the U.S. government adopted in 1787?

The United States Constitution, adopted in 1787, serves as the foundational legal document establishing the framework of the U.S. government. It outlines the structure, functions, and powers of the legislative, executive, and judicial branches. The Constitution was created to address the weaknesses of the Articles of Confederation, which had been the country's first governing document but proved ineffective in uniting the states and managing the nation's affairs.

The Constitution not only delineates the powers bestowed upon the government but also includes mechanisms for checks and balances among the branches to prevent any one branch from becoming too powerful. Additionally, it has been amended over time to reflect the evolving needs and values of the nation, including the Bill of Rights, which protects individual liberties.

In contrast, the Declaration of Independence, while a crucial document asserting the colonies' intent to separate from British rule, does not outline a government framework. The Articles of Confederation preceded the Constitution and laid out a system that ultimately failed due to its limitations. The Bill of Rights is a series of amendments aimed at safeguarding citizen rights but was ratified after the Constitution and does not serve as the foundational framework itself.