<Table> <Tr> <Th_colspan="2"> United States Constitution </Th> </Tr> <Tr> <Td_colspan="2"> Page one of the original copy of the Constitution </Td> </Tr> <Tr> <Th> Jurisdiction </Th> <Td> All States and Territories </Td> </Tr> <Tr> <Th> Created </Th> <Td> September 17, 1787 </Td> </Tr> <Tr> <Th> Presented </Th> <Td> September 28, 1787 </Td> </Tr> <Tr> <Th> Ratified </Th> <Td> June 21, 1788 </Td> </Tr> <Tr> <Th> Date effective </Th> <Td> June 21, 1788 </Td> </Tr> <Tr> <Th> System </Th> <Td> Constitutional Republic </Td> </Tr> <Tr> <Th> Branches </Th> <Td> </Td> </Tr> <Tr> <Th> Chambers </Th> <Td> Bicameral </Td> </Tr> <Tr> <Th> Executive </Th> <Td> President </Td> </Tr> <Tr> <Th> Judiciary </Th> <Td> Supreme, Circuits, Districts </Td> </Tr> <Tr> <Th> Federalism </Th> <Td> Federation </Td> </Tr> <Tr> <Th> Electoral college </Th> <Td> Yes </Td> </Tr> <Tr> <Th> Entrenchments </Th> <Td> 2, 1 still active </Td> </Tr> <Tr> <Th> First Legislature </Th> <Td> March 4, 1789 </Td> </Tr> <Tr> <Th> First Executive </Th> <Td> April 30, 1789 </Td> </Tr> <Tr> <Th> First court </Th> <Td> February 2, 1790 </Td> </Tr> <Tr> <Th> Amendments </Th> <Td> 27 </Td> </Tr> <Tr> <Th> Last Amended </Th> <Td> May 5, 1992 </Td> </Tr> <Tr> <Th> Location </Th> <Td> National Archives, Washington, D.C. </Td> </Tr> <Tr> <Th> Commissioned by </Th> <Td> Confederation Congress </Td> </Tr> <Tr> <Th> Author (s) </Th> <Td> Philadelphia Convention </Td> </Tr> <Tr> <Th> Signatories </Th> <Td> 39 of the 55 delegates </Td> </Tr> <Tr> <Th> Media type </Th> <Td> Parchment </Td> </Tr> <Tr> <Th> Supersedes </Th> <Td> Articles of Confederation </Td> </Tr> </Table> <Tr> <Th_colspan="2"> United States Constitution </Th> </Tr>

When was the constitution of the united states created