Question: What is the date of death of the founder of magazine Mondoperaio?
Sentence (from "Mondoperaio"): journal hosts debates that innovate radically the Italian political culture: in 1975 Norberto Bobbio criticized Marxist doctrine of the state; in 1976 Massimo L. Salvadori criticized Gramscian doctrine of hegemony; in 1977 Giuliano Amato opened the discussion on the need for institutional reform.
Relevant evidence: No