Rubuta ci gaba don wannan sakin layi - Ya kafa kuma ya shiga cikin jagorancin jaridar "România Muncitoare". A watan Maris na 1905, I. C. Frimu ya taimaka wajen kafa Kungiyar Carpenters ta Bucharest (wanda aka zaba a matsayin shugabanta), kuma, a cikin 1907, ya shiga jagorancin Socialist Union of Romania - tayin PSDR na bayan 1910. Kungiyar Socialist Union ta zo ne a lokaci guda da juyin juya halin 'yan kasar Romania
<unk> tuhumar gwamnati game da sansanin gurguzu ya haifar da korar masu ba da gudummawar "România Muncitoare", Rakovsky daga cikinsu; Frimus ya ci gaba da hulɗa da waɗanda aka kora (ciki har da 'yan'uwan Hoppe, waɗanda suka zauna a Vienna). A cikin 1909, I. C. Frimu da marubucin marubuci na gaba Panait Istrati an daure su a Gidan Yari na Văcărești, bayan sun shiga cikin tarzoma da ke neman majalisar ministocin Liberal na Ion I. C. Brătianu ta karɓi Rakovsky a cikin Romania.