An Ordinance for the Government of the Territory of the United States, North-West of the River Ohio. As it appears in the Supplement to the First Volume of the Columbian Magazine, Philadelphia, 1787.
Considered to be one of the most significant achievements of the Congress of the Confederation, the Northwest Ordinance of 1787 put the world on notice not only that the land north of the Ohio River and east of the Mississippi would be settled but that it would eventually become part of the United States. Until then this area had been temporarily forbidden to development.
The area opened up by the Ordinance was based on lines originally laid out in 1784 by Thomas Jefferson in his Report of Government for Western Lands. The Ordinance provided for the creation of not less than three nor more than five states. In addition, it contained provisions for the advancement of education, the maintenance of civil liberties and the exclusion of slavery.
Above all, the Northwest Ordinance accelerated the westward expansion of the United States.
The text version of the Northwest Ordinance is also available.