Question: when did the american constitution came into force
Answer: United States Constitution Page one of the original copy of the Constitution Jurisdiction All States and Territories Created September 17 , 1787 Presented September 28 , 1787 Ratified June 21 , 1788 Date effective June 21 , 1788 System Constitutional Republic Branches Chambers Bicameral Executive President Judiciary Supreme , Circuits , Districts Federalism Federation Electoral college Yes Entrenchments 2 , 1 still active First legislature March 4 , 1789 First executive April 30 , 1789 First court February 2 , 1790 Amendments 27 Last amended May 5 , 1992 Location National Archives , Washington , D.