[2] He fought in World War I, during which time he published the newly discovered statue of Apollo from Veii in 1916.
In the post-war years, he held positions at the Università di Roma, beginning in 1923.
Since his work was carried out largely in the 1930s, he demonstrated the required allegiance to Fascism and to Benito Mussolini.
[2] Giglioli has been described as "the chief archaeologist of the regime, (who) used his research to argue that the national and historical aims of Fascism were part of a continuous trajectory of Roman history.
"[3] After the fall of Il Duce in 1943, Giglioli returned to the university and would establish the journal Archeologia Classica in 1948.