Río Cuarto, Córdoba
Once finished primary school, young Mosconi entered the Military College of the Nation on 26 May 1891, and graduated from it as an infantry sub-lieutenant on 20 November 1894, at 17 years of age. He was assigned to take charge of the 7th Infantry Regiment in Río Cuarto, Córdoba, and he began writing a "Rulebook for Campaign Infantry", with details on the handling of explosives and instructions to build bridges. In 1896 he was promoted and transferred to Buenos Aires, where he started the Engineering career.