On This Day

What Happened on September 25, 1644

Famous Birthdays

  • Ole Rømer, Danish astronomer, born in Aarhus, Denmark (d. 1710)
1644 Highlights

About September 25, 1644

Day of the Week: Sunday
How Long Ago? 377 years, 4 months and 2 days
Leap Year: Yes

Star Sign: Libra