{"id":626372,"date":"2026-01-18T23:37:54","date_gmt":"2026-01-18T22:37:54","guid":{"rendered":"https:\/\/cronologia-universale.it\/may-25-1973\/"},"modified":"2026-01-18T23:37:54","modified_gmt":"2026-01-18T22:37:54","slug":"1968-11","status":"publish","type":"post","link":"https:\/\/cronologia-universale.it\/en\/1968-11\/","title":{"rendered":"1968"},"content":{"rendered":"<p>Gribov and Pontecorvo published a theory based on the hypothesis of the existence of two types of neutrinos. 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