Famous Birthdays
- John Tyndall, Irish physicist who demonstrated why the sky is blue and proved that the Earth's atmosphere has a greenhouse effect, born in Leighlinbridge, County Carlow, Ireland (d. 1893)
1820 Highlights
About August 2, 1820
Day of the Week: Wednesday
How Long Ago? 200 years, 5 months and 20 days
Leap Year: Yes
Star Sign: Leo
