Agreement among the 13 original states of the United States of America that served as its first constitution. It was approved after much debate (between July 1776 and November 1777) by the Second Continental Congress on November 15, 1777, and sent to the states for ratification. The Articles of Confederation came into force on March 1, 1781, after ratification by all the states. A guiding principle of the Articles was to preserve the independence and sovereignty of the states. The weak central government established by the Articles received only those powers which the former colonies had recognized as belonging to king and parliament.

The document provided clearly written rules for how the states' "league of friendship" would be organized. During the ratification process, the Congress looked to the Articles for guidance as it conducted business, directing the war effort, conducting diplomacy with foreign states, addressing territorial issues and dealing with Native American relations. Little changed politically once the Articles of Confederation went into effect, as ratification did little more than legalize what the Continental Congress had been doing. That body was renamed the Congress of the Confederation; but most Americans continued to call it the Continental Congress, since its organization remained the same.