On This Day

What Happened on April 21, 1820

Historical Events


Event of interestEvent of Interest

Danish scientist Hans Christian Ørsted is the first to identify electromagnetism, when he observes a compass needle

Physicist, Chemist Hans Christian Ørsted
Physicist, Chemist
Hans Christian Ørsted

1820 Highlights

About April 21, 1820

Day of the Week: Friday
How Long Ago? 200 years, 10 months and 11 days
Leap Year: Yes

Star Sign: Taurus