Vermont became the 14th U.S. state, the first admitted after the original thirteen colonies, after years as an independent republic.

Samuel Finley Breese Morse, painter turned inventor, is born in Charlestown, Massachusetts, decades before he transforms long-distance communication forever.

The Polish-Lithuanian Commonwealth adopts Europe's first modern written constitution, establishing a constitutional monarchy and separation of powers.

The Sejm adopted the Constitution of May 3, 1791, Europe's first modern written constitution, establishing a constitutional monarchy and separation of powers in Poland-Lithuania.

Enslaved people in Saint-Domingue began a coordinated uprising following a Vodou ceremony at Bois Caïman, launching the only successful slave revolt in modern history.

Enslaved Africans in Saint-Domingue launched a massive uprising, beginning the Haitian Revolution that would end in the first successful slave rebellion to found a nation.

Enslaved people in the French colony of Saint-Domingue rose in a coordinated revolt that ignited the Haitian Revolution, the only successful slave revolt to found a state.

Free Black astronomer Benjamin Banneker sent Thomas Jefferson a letter and almanac challenging him to reconcile slavery with the ideals of the Declaration of Independence.

Wolfgang Amadeus Mozart's opera 'The Magic Flute' premieres in Vienna, two months before the composer's death.

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The Observer, now the world's oldest Sunday newspaper still in print, published its first issue in London.

Enslaved insurgents continued their uprising against French colonial rule in Saint-Domingue, weeks after the massive slave revolt began in the colony's north.

Wolfgang Amadeus Mozart died in Vienna at 35, leaving his Requiem Mass unfinished on the desk beside him.

Virginia became the eleventh state to approve ten constitutional amendments, though the formal count confirming the Bill of Rights' ratification came days later.

Virginia's ratification made the U.S. Bill of Rights, ten amendments guaranteeing fundamental liberties, part of the Constitution.

Virginia's ratification completed the ten amendments to the U.S. Constitution, enshrining freedoms of speech, religion, and due process into American law.

Virginia's approval brought the United States to the threshold of enshrining the first ten amendments, guaranteeing core civil liberties against federal overreach.