Which document is known for beginning the process of establishing a framework for the U.S. government?

The U.S. Constitution is recognized for establishing a foundational framework for the government of the United States. Adopted in 1787, it outlines the structure of the government, delineates the powers and responsibilities of different branches, and sets forth the process for lawmaking and amendments. This document replaced the Articles of Confederation, which had proven to be insufficient in managing the complexities of government and inter-state relations.

The Constitution not only established federal institutions, such as the executive, legislative, and judicial branches, but it also established checks and balances to ensure that no single branch would become too powerful. Furthermore, it was designed to be a living document, allowing for amendments to be made as society evolved. Thus, it is regarded as the cornerstone of U.S. governance and law, marking the beginning of a more structured and enduring system of government.