On This Day

March 1789 in History

Events in History


USAConstitution of the United States

Mar 4 1st US Congress meets and declares constitution in effect (9 senators, 13 reps)

Learn More
Page one of the original copy of the Constitution of the United States
Page one of the original copy of the Constitution of the United States
Learn More
  • Mar 4 US House of Representatives 1st full meeting, NYC, F Muhlenberg 1st speaker

Event of interestEvent of Interest

Mar 11 Benjamin Banneker and Pierre Charles L'Enfant begin to lay out Washington, D.C.

Mathematician, Astronomer and Almanac Author Benjamin Banneker
Mathematician, Astronomer and Almanac Author
Benjamin Banneker
Washington D.C. Architect Pierre Charles L'Enfant
Washington D.C. Architect
Pierre Charles L'Enfant

Birthdays in History

  • Mar 4 Pavel P Gagarin, Russ monarch
  • Mar 16 Georg Ohm, German physicist and mathematician (Ohm's law), born in Erlangen, Bavaria (d. 1854)