On This Day

What Happened on June 11, 1644

Historical Events

  • Florentine scientist Evangelista Torricelli describes his invention of the mercury barometer in 1643 in a letter to Michelangelo Ricci
1644 Highlights

About June 11, 1644

Day of the Week: Saturday
How Long Ago? 377 years, 1 month and 9 days
Leap Year: Yes

Star Sign: Gemini