On This Day

What Happened in 1791

Important Events in 1791

  • Mar 2 Long-distance communication speeds up with the unveiling of a semaphore machine in Paris
  • May 3 Constitution of May 3 is proclaimed by the Great Sejm (Parliament) of the Polish-Lithuanian Commonwealth, becoming the 1st modern constitution in Europe
  • Nov 26 1st US cabinet meeting, held at George Washington's home in Philadelphia, Pennsylvania. Secretary of State Thomas Jefferson, Secretary of the Treasury Alexander Hamilton, Secretary of War Henry Knox, and Attorney General Edmund Randolph attend.
  • Dec 4 Britain's Observer, oldest Sunday newspaper in the world, first published
  • Dec 15 US Bill of Rights ratified when Virginia gives its approval, becomes amendments 1-10 of the US constitution

More Historical Events

1791 in Music

  • Sep 6 Mozart's opera "La Clemenza di Tito" premieres in Prague
  • Sep 30 Mozart's opera "Magic Flute" premieres in Vienna


Famous People in 1791

World Leaders in 1791

Famous Weddings in 1791

  • Sep 6 Emma, Lady Hamilton (26) marries Sir William Hamilton (60) at St Marylebone Parish Church in London
  • Oct 1 Prince Willem Frederick (later King of Netherlands) marries his cousin princess Frederica Louise Wilhelmine of Prussia