This document discusses the history and development of radio documentaries in Italy from the 1920s to the 1950s. It begins by defining John Grierson's concept of documentary as the creative treatment of actuality through edited shots and voiceovers. It then covers the origins of radio broadcasts in fascist Italy and the early use of radio chronicles. After World War 2, radio documentaries aimed to represent postwar Italian life and society. The period of greatest growth was in the 1940s-60s with the emergence of radio neo-realism alongside Italian cinematic neo-realism. Two genres that developed were ethno-anthropological documentaries and historical-geographical documentaries intended to represent Italian reality. An example of the latter was