J. J. Thomson

Events

1

Episodes

1

Years

1897

Every event in Historedia whose sources name J. J. Thomson, 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. J. J. Thomson announces the electron at the Royal Institution

   1897

   Role: Physicist

   1. 130 April 1897 · Royal InstitutionAnnouncement at the Royal Institution

      Thomson announced the existence of subatomic particles, calling them 'corpuscles', based on observations of cathode rays traveling further than expected for atoms.

Sources

1. J. J. Thomson Wikipedia, revision of 2026-10-06