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United States Constitution
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| Constitution of the United States | |
|---|---|
 Page one of Jacob Shallus' officially engrossed copy of the Constitution signed in Philadelphia by delegates of the Constitutional Convention in 1787[1] | |
| Overview | |
| Jurisdiction | United States of America |
| Created | September 17, 1787 |
| Presented | September 28, 1787 |
| Ratified | June 21, 1788 (9 of 13 states) |
| Date effective | March 4, 1789[2] |
| System | Federal presidential republic |
| Government structure | |
| Branches | 3 |
| Chambers | Bicameral |
| Executive | President |
| Judiciary | Supreme, Circuits, Districts |
| Federalism | Yes |
| Electoral college | Yes |
| Entrenchments | 2, 1 still active |
| History | |
| First legislature | March 4, 1789 (11 of 13 states) |
| First executive | April 30, 1789 |
| First court | February 2, 1790 |
| Amendments | 27 |
| Last amended | May 5, 1992 |
| Citation | The Constitution of the United States of America, As Amended (PDF), July 25, 2007 |
| Location | National Archives Building in Washington, D.C., U.S. |
| Commissioned by | Congress of the Confederation in Philadelphia, U.S. |
| Author(s) | Philadelphia Convention |
| Signatories | 39 of the 55 delegates |
| Media type | Parchment |
| Supersedes | Articles of Confederation |
| Full text | |
 Constitution of the United States of America at Wikisource | |
| This article is part of a series on the |
| Politics of the United States |
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