The Northwest Ordinance (formally the Ordinance for the Government of the Territory of the United States, North West of the River Ohio) primarily created the Northwest Territory. The ordinance was passed by the Continental Congress on July 13, 1787, and affirmed, with slight modifications, by the U.S. Congress on August 7, 1789. Provisions of the Northwest Ordinance presaged several provisions of the Constitution and the First Amendment and announced a prohibition of slavery in the states to be formed out of the territories.

When the Treaty of Paris ended the Revolutionary War in 1783, the United States laid claim to lands stretching from the Ohio River west to the Mississippi and north to the Great Lakes. This land, which came to be known as the Northwest Territory, had been claimed by several states, which gave up their claims when they ratified the Articles of Confederation.

In 1784 Thomas Jefferson proposed a plan for developing the new territory into states. The main features of that plan were adopted by the Continental Congress in 1787, while the Constitutional Convention was meeting in Philadelphia.

The primary purpose of the ordinance was to terminate the claims of individual states and to organize the territory into new states. These purposes are accomplished by sections 1–13 of the document. Section 14 announced a perpetual compact between the people of the original states and the people of the new territories that could be altered only by mutual consent.

In setting the stage for the Constitution, the first article of the compact promised religious toleration for any person “demeaning himself in a peaceable and orderly manner” regardless of that person’s mode of worship or religious sentiment. The second article announced a series of rights related to criminal procedure, political equality, and the protection of private property. The third article announced that schools and means of education were to be encouraged, because religion, morality, and knowledge were necessary to “good government and the happiness of mankind.”

After the Civil War in the 1860s, the Declaration of Independence, Articles of Confederation, Northwest Ordinance, and Constitution, taken together, came to be called the “Organic Laws of the United States of America.” The title conveys the conviction, enunciated by President Abraham Lincoln, that the founding of the United States was “dedicated to the proposition that all men are created equal.”

Send Feedback on this article