The united states moved from being a confederation to a

On March 4, 1789, the modern United States was established when the U.S. Constitution formally replaced the Articles of Confederation. Between 1776 and 1789, Americans went from living under a sovereign king, to living in sovereign states, to becoming a sovereign people.

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copernicus finished the first manuscript of his book, "de revolutionibus orbium coelestium" ("on the revolutions of the heavenly spheres") in 1532. in it, copernicus established that the planets orbited the sun rather than the earth. he laid out his model of the solar system and the path of the planets.