Famous Birthdays
- Philippe de la Hire, French mathematician and astronomer (d. 1719)
1640 Highlights
About March 18, 1640
Day of the Week: Sunday
How Long Ago? 382 years, 1 month and 30 days
Leap Year: Yes
Star Sign: Pisces
Year of the Rat
Year of the Ox
Year of the Tiger
Year of the Rabbit
Year of the Dragon
Year of the Snake