The newspaper began to be published in Trieste on June 1, 1870, as a four-page small-format biweekly until 1884, from 1884 to 1900 as a weekly.
[1] The paper was initiated by Bishop Juraj Dobrila, and was conceived by Matko Baštijan, Antun Karabaić, Mate Ujčić and Tomislav Padavić.
The subtitle read Poučni, gospodarski i politički list ("Educational, Economic and Political Journal"),[1][2] and underneath it was the motto Slogom rastu male stvari, a nesloga sve pokvari ("Harmony grows small things, but discord spoils everything").
After Karabaić, the editors-in-chief were Andrija Novak, Lovro Testen, Karlo Kiršjak and Matko Mandić.
This Naša sloga was subtitled glasilo jugoslovenskih iseljenika u državama Južne Amerike ("the newsletter of Yugoslav emigrants in the countries of South America", and was financially supported by the Embassy of the Kingdom of Yugoslavia in Buenos Aires.