America's Founding Primary Source Documents:
The U.S. Constitution was written in the summer of 1787 in Philadelphia, Pennsylvania, by delegates from 12 states, in order to replace the Articles of Confederation with a new form of government. It created a federal system with a national government composed of
three separated powers (Executive, Judicial, Legislative), and included both reserved and concurrent powers of states. See the Federalist Papers,
which James Madison, Alexander Hamilton, and John Jay wrote to convince the colonies to sign the Constitution.
It took until 1790 for all 13 colonies to accept The Constitution.
Statehood
Georgia (4 of 50 States) Admitted 2 January 1788
Connecticut (5 of 50 States) Admitted 9 January 1788
Massachusetts (6 of 50 States) Admitted 6 February 1788
Maryland (7 of 50 States) Admitted 28 April 1788
South Carolina (8 of 50 States) Admitted 22 May 1788
New Hampshire (9 of 50 States) Admitted 21 June 1788
Virginia (10 of 50 States) Admitted 25 June 1788
New York (11 of 50 States) Admitted 26 July 1788