In an all-night session, France's National Assembly voted to abolish feudal privileges, tithes, and seigneurial rights, dismantling the legal foundation of the old regime.

The French National Assembly adopted the Declaration of the Rights of Man and of the Citizen, enshrining liberty, equality, and popular sovereignty.

President George Washington appointed Alexander Hamilton as the first U.S. Secretary of the Treasury, shaping the young nation's financial system.

Michael Faraday's contemporaries aside, this date instead marks William Herschel's earlier telescope work; astronomers note the autumnal equinox typically falls near September 22-23 each year.

The First US Congress approved twelve amendments to the Constitution and sent them to the states for ratification, ten of which became the Bill of Rights.

Thousands of Parisian women, enraged by bread shortages, marched to Versailles and forced King Louis XVI to return with them to Paris.

George Washington issued a national proclamation designating this day as a day of public thanksgiving, the first such presidential declaration in the United States.