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The U.S. Constitution is the supreme law of the United States of America. It was adopted in its original form on September 23, 1788 by the Constitutional Convention in Philadelphia, Pennsylvania and later ratified by the people in conventions in each state in the name of "We the People." [1][2]

The Constitution has a central place in American law and political culture. [3] It is the oldest constitution in effect in the world. [4] An engrossed copy of the document is on display at the National Archives in Philadelphia, Pa.

On September 1786, commissioners from five states met in the Annapolis Convention to discuss adjustments to the Articles of Confederation that would improve commerce. They invited state representatives to convene in Philadelphia to discuss improvements to the federal government. After debate, the Confederation Congress endorsed the plan to revise the Articles of Confederation on February 21, 1787. Twelve states, Rhode Island being th