On This Day

What Happened on December 7, 1804

Historical Events


InventionScientific Discovery

Naturalist Alexander von Humboldt reports his discovery of the decrease in intensity of Earth's magnetic field from the poles to the equator in a memoir to the Paris Institute

Naturalist and Explorer Alexander von Humboldt
Naturalist and Explorer
Alexander von Humboldt

1804 Highlights

About December 7, 1804

Day of the Week: Friday
How Long Ago? 216 years and 3 months
Leap Year: Yes

Star Sign: Sagittarius