Historedia
Person

Joseph Louis Gay-Lussac

Events
2
Episodes
5
Years
1811–1813

Every event in Historedia whose sources name Joseph Louis Gay-Lussac, 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. Amedeo Avogadro publishes his memoir on the molecular content of gases

    1811

    Role: Predecessor

    1. 1811 · Journal de PhysiquePublication of the 1811 Memoir

      Avogadro published his essay on relative molecular masses in the Journal de Physique, proposing the equality of gas volumes and molecule counts.

  2. Bernard Courtois discovers iodine

    1811–1813

    Role: Identifier

    1. 1811 · Normandy and Brittany shoresDiscovery from Seaweed Ash

      Courtois discovered iodine in late 1811 by adding sulfuric acid to seaweed ash while producing saltpetre.

    2. 1813 · ParisRecognition of Courtois

      Davy and Gay-Lussac acknowledged Courtois as the true discoverer despite arguments over identification.

    3. 29 November 1813 · Imperial Institut de FrancePublic Announcement

      Desormes and Clément made Courtois' discovery public at the Imperial Institut de France in November 1813.

    4. 6 December 1813 · ParisGay-Lussac Identification

      Gay-Lussac announced the substance was an element on 6 December 1813 and named it iode in 1813.

Sources

  1. Amedeo Avogadro Wikipedia, revision of 2026-09-03
  2. Iodine Wikipedia, revision of 2026-10-01
  3. Joseph Louis Gay-Lussac Wikipedia, revision of 2026-08-31