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Events on Friday 25 May 1787 1
1787Philadelphia Convention drafts the United States ConstitutionDelegates meet in Philadelphia to replace the Articles of ConfederationDelegates from twelve states convened in Philadelphia from May to September to revise the Articles of Confederation. Instead they drafted an entirely new frame of government, the United States Constitution, which was signed on 17 September 1787. It established a federal system with separated legislative, executive, and judicial powers.