when did congress meet again and officially end the articles of confederation government?

Congress officially ended the Articles of Confederation government when the new U.S. Constitution was adopted and took effect in 1789. The Articles were ratified and came into force on March 1, 1781, serving as the first government framework during and shortly after the American Revolution. The Constitutional Convention in 1787, called to revise the Articles, instead drafted a new Constitution that significantly strengthened the central government. This Constitution was ratified by nine states and officially replaced the Articles when the new government began operating on March 4, 1789.