The Irmandades da Fala (English: "Brotherhood of the Language") was a Galician nationalist organization active between 1916 and 1936. It was the first political organization of Galicia that used only the Galician language.
Background
Aurelio Ribalta, a Galician writer living in Madrid, called for the protection of the Galician language in 1915. On 5 January 1916, Antón Vilar Ponte started a campaign for the establishment of a League of Friends of the Galician Language in the newspaper La Voz de Galicia and in March 1916 he published Galician Nationalism (Notes for a Book): Our Regional Affirmation, where he supported the protection, dignification and use of the Galician language.[1]