In 2017, I followed an online course on FRANCE UNIVERSITÉ NUMÉRIQUE (fun-mooc.fr) about contributing in Wikipedia. I started by translating in French and expanding the German Wikipedia article Carlos Ibáñez de Ibero creating a French version named Carlos Ibáñez e Ibáñez de Ibero. I also contributed in the article Carlos Ibáñez e Ibáñez de Ibero in English from 20 May 2017. I contributed in the Wikipedia articles Albert Dupont-Willemin in German and Albert Dupont-Willemin in French as well as in the article Otto Fehlmann in French. On 27 March 2017, I started contributing in French Wikipedia article Méridien de Paris. I created the article Élie Ritter in French on 24 February 2021. More recently I contributed in the English Wikipedia articles History of the metre, International Association of Geodesy and Arc measurement of Delambre and Méchain which best synthesizes my contributions on Metrology and Geodesy in French Wikipedia and English Wikipedia. Charles Inigo (talk) 04:44, 24 February 2025 (UTC)

I contributed in the Spanish Wikipedia article Marquesado de Mulhacén and corresponded with Larrie D. Ferreiro and Jaime Nubiola who took into account some of my suggestions in his web page consecrated to Carlos Ibáñez e Ibáñez de Ibero (1825-1891) on the website of University of Navarra: Correspondencia europea de C. S. Peirce: creatividad y cooperación científica. Charles Inigo (talk) 05:01, 24 February 2025 (UTC)