On February 21, 1787, Congress resolved: "It is expedient that one the second Monday in May next a Convention of delegates who shall have been appointed by the several States be held at Philadelphia for the sole and express purpose of revising the Articles of Confederation."
quoted from: History - Wikipedia, the free encyclopedia _of_the_United_States_Constitution
So what was the purpose of the Philadelphia Convention? What were the delegates from each of the 12 States attending actually authorized to do? Were they authorized by their various States to form a new and different government under a 'constitution'? What are the historical facts concerning how we came to have the 'Constitution of 1787'?