Johann Wilhelm Ritter

Events

1

Episodes

1

Years

1820

Every event in Historedia whose sources name Johann Wilhelm Ritter, with the role they cite and all of that event’s episodes. This is not a biography, and mentions are grouped by name, so two people with the same name can share this page.

Events and episodes

1. Ørsted discovers electromagnetism

   1820

   Role: Believed in connection between electricity and magnetism

   1. 1April 1820 · Unresolved occurrence localityObservation of Compass Needle Deflection

      In April 1820, Ørsted observed that an electrical current in a wire caused a nearby compass needle to move, confirming a direct relationship between electricity and magnetism.

Sources

1. Hans Christian Ørsted Wikipedia, revision of 2026-08-29