In 1901, the government, led by Julio Argentino Roca, as well as Franciscan missionaries from the convent of San Carlos Borromeo of San Lorenzo in Santa Fe agreed to found two indigenous reductions in the National Territory of Formosa. One of the missions, San Francisco Solano de Tacaaglé, was initiated by the Franciscan friar Terence Marcucci on March 21, 1901 with 150 Qom and Pilagá people largely coming from the northern Chaco in Paraguay. The mission occupied 20,000 hectares of land near the Pilcomayo River, inside of which the mission itself was moved various times. The second reduction, San Francisco de Laishí was founded with the Qom people on March 25, 1901 in the southeast region of Formosa by Father Serafín Iturralde and Father Ghio. This mission was composed of 74,000 hectares of land in which there was a sugar factory that operated until 1946. When Formosa became an official province in 1955, the two missions were given civil control, resulting in the towns of Misión Tacaaglé and San Francisco de Laishí.