Treintismo

Treintismo (English: Thirtyism) was a libertarian socialist political movement in the Second Spanish Republic. Initially a faction within the National Confederation of Labour (CNT), the treintistas were, after the publication of the Manifesto of the Thirty in September 1931, expelled from the CNT over the course of the years 1931 and 1932 and formed the Syndicalist Party in 1932. The treintistas and the trade unions associated with them, the Opposition Syndicates, rejoined the CNT in 1936. The movement fell into political irrelevance with the victory of the Nationalist forces of Francisco Franco in the Spanish Civil War.

The name is derived from the Spanish word for the number 30, treinta.