The #SunLanguageTheory (#Turkish: Güneş Dil Teorisi) was a Turkish #pseudolinguistic, #pseudoscientific quasi-hypothesis developed in #Turkey in the 1930s that proposed that all human #languages are descendants of one #protoTurkic primal language. The theory's promotion of Turks as a progenitor race led to it finding favour among Turkish #ultranationalists, who used it to justify their nationalist ideology. It claims that primal language had close #phonemic resemblances to Turkish and.