The cotton gin helped keep slavery profitable in the South
Drafted and adopted by the Congress in 1777 but not ratified until 1781, it effectively established the U.S. as a collection of 13 sovereign states, each of which had an equal voice in Congress (which became officially known as the Congress of the Confederation) regardless of population.
Labor Law In the United States that outlaws discrimination based on race, color, religion,sex national origin and later sexual orientation and gender identity.