"In 1868, at the end of the presidency of Mitre, he enthusiastically supported the candidacy of Sarmiento who rewarded him by appointing him as colonel and Commander of Borders in Rio IV province of Córdoba. There he made his campaign against the aborigines that will be immortalized in his work An excursion to the Ranqueles Indians. The work was published in installments in the newspaper La Tribuna throughout 1870. Five years later she would be awarded the first prize of the International Geographical Congress of Paris." – Philip Pigna
On March 24, 1976, it began with the overthrow of Maria Estela Martinez de Perón, a succession of dictatorial governments that carried out a systematic plan of disappearance of people, detained without trial or more reason than their ideological thought. It was a dark night for the country, which began to end with the return of democracy in 1983, after the defeat in the Falklands War.