 Nyorai kupfuurira kweiyi ndima - Bonomi akaberekerwa muMantua, Italy. Akasarudzwa muItaly Chamber of Deputies muna 1909, achimiririra Mantua senhengo yeItaly Socialist Party. Akanga ari pakati pevaya vakadzingwa mubato muna 1912, nekuda kwekutsigira kwake shanduko uye kuderera, pamwe nekutsigira kwake kupinda kweItaly muLibya. Bonomi akabatana neItaly Reformist Socialist Party, uye akatsigira kutora chikamu kweItaly muHondo Yenyika I kudivi reTriple Entente. 