Famous Birthdays
- Francisco Moreno, Argentine explorer (Patagonia), and museum founder (he La Plata Museum of Natural History), born in Buenos Aires, Argentina (d. 1919)
- Julius Richard Petri, German microbiologist generally credited with inventing the device known as the Petri dish, born in Barmen, Kingdom of Prussia (now part of Wuppertal, Germany) (d. 1921)
About May 31, 1852
Calendar: Gregorian
Day of the Week: Monday
How Long Ago? 172 years, 2 months and 1 day
Leap Year: Yes
Star Sign: Gemini
Authors
Civil Rights Activists
Inventors
Kings
Revolutionaries
Scientists