The school of thought stemming from René Guénon, Ananda Coomaraswamy and Frithjof Schuon: perennialism in its metaphysical form — one primordial truth underlying the major world religions in their orthodox forms — joined, in Mark Sedgwick's summary, to the conviction that history is decline rather than progress. Capitalized, the label names this movement only. It is distinct in origin from Catholic traditionalism (attachment to the pre-Vatican II Mass and doctrine — the fsspx project's subject), and distinct again from Julius Evola's politicized 'Traditionalism', the reading later invoked in radical-right politics, whose compatibility with the school scholars dispute. Three different 'traditionalisms': the project pages disambiguate on sight and document the individual bridges between them case by case.[1] [2]