21 April 1820Electromagnetism DemonstrationHans Christian Oersted
Observes an electric current deflecting a nearby compass needle.
Historical records for Denmark in 1820, rendered directly from the World History Database and ordered by month, day and event.
Observes an electric current deflecting a nearby compass needle.
Establishes an experimental connection between electricity and magnetism.
This page is generated from stored World History Database records matching the exact country and year shown above. Exact duplicate display records are collapsed. Records without a month are listed after the monthly sections. Source provenance varies by record; formal academic citation should be checked against the relevant primary source, archive or specialist historical reference.