Claims for an autonomous solution to the Sardinian economic, social and cultural problems, which the 1948 Statute proved unable to resolve, came to the fore once again in the Sixties, with campaigns, often expressed in the form of political demands by Sardinian nationalists, to give Sardinian equal status with Italian as a means to promote cultural identity. Although a law was passed as early as 1955 for the establishment of five professorships of Sardinian linguistics, one of the first demands for bilingualism was formulated in a resolution adopted by the University of Cagliari in 1971, calling upon the national and regional authorities to recognize the Sardinians as an ethnic and linguistic minority and Sardinian as the islanders' co-official language. Sergio Salvi's description of the Sardinians as a "forbidden nation" in Italy further contributed to the linguistic question gaining more notoriety at the national level. A first legal draft concerning Sardinian as a language to be legally put on an equal position with Italian was developed by the Sardinian Action Party in 1975. Critical acclaim in Sardinian cultural circles followed the patriotic poem "No sias isciau" ("Don't be a slave") by Raimondo () Piras some months before his death in 1977, urging bilingual education to reverse the ongoing trend of cultural De-Sardization.