The constitution was approved by Congress and ratified by state conventions.
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Britain's American colonies broke with the mother country in 1776 and were recognized as the new nation of the United States of America following the Treaty of Paris in 1783. During the 19th and 20th centuries, 37 new states were added to the original 13 as the nation expanded across the North American continent and acquired a number of overseas possessions.
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Constitute Project (CP)
Constitute was developed by the authors of the Comparative Constitutions Project at the University of Texas at Austin. It was seeded with a grant from Google Ideas, with additional financial support from the Indigo Trust and IC2.