The Constitution of the United States is the supreme law of the United States of America. It superseded the Articles of Confederation, the nation's first constitution, in 1789. Originally comprising seven articles, it delineates the national frame and constraints of government.
Founded, May 25, 1787
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The Constitutional Convention opens with a quorum of seven states in Philadelphia to discuss revising the Articles of Confederation. Eventually, all states but Rhodes Island are represented.
Ratified, June 21, 1788
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The Constitution becomes effective for the ratifying states when New Hampshire is the ninth state to ratify it.
Signed, Sept 17, 1787
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All 12 state delegations approve the Constitution, 39 delegates sign it of the 42 present, and the Convention formally adjourns. George Washington William Jackson
Signed, Dec 7, 1787
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1st to ratify the constitution: Delaware - George Read, Gunning Bedford jr., John Dickinson, Richard Bassett, Jacob Broom
Signed, Dec 12, 1787
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Pennsylvania - Benjamin Franklin, Thomas Mifflin, Robert Morris, George Clymer, Thomas Fitzsimons, Jared Ingersoll, James Wilson, Gouverneur Morris
Signed, Dec 18, 1787
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New Jersey - William Livingston, David Brearley, William Paterson, Jonathan Dayton
Signed, Dec 31, 1787
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Georgia - William Few, Abraham Baldwin
Signed, Jan 9, 1788
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Connecticut - William Samuel Johnson, Roger Sherman
Signed, Feb 6, 1788
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Massachusetts - Nathaniel Gorham, Rufus King
Signed, Apr 26, 1788
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Maryland - James McHenry, Daniel of St Thomas Jenifer, Daniel Carroll
Signed, May 23, 1788
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South Carolina - John Rutledge Charles Cotesworth Pinckney Charles Pinckney Pierce Butler
Signed, June 21, 1788
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New Hampshire - John Langdon, Nicholas Gilman. The Constitution becomes effective for the ratifying states when New Hampshire is the ninth state to ratify it.
Signed, June 25, 1788
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Virginia - John Blair, James Madison Jr.
Signed, July 26, 1788
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New York - Alexander Hamilton
Founded, Mar 4, 1789
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The first Congress under the Constitution convenes in New York City
Signed, Nov 21, 1789
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North Carolina - William Blount Richard Dobbs Spaight Hugh Williamson
Signed, May 29, 1790
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Rhode Island
Ratified, Dec 15, 1791
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Virginia ratifies the Bill of Rights and 10 of the 12 proposed amendments become part of the US constitution