Provinces of Argentina Aires Province accepted the 1853 Constitution of Argentina in 1861, and its capital city was made a federal territory in 1880. A law from 1862 designated as national territories those under federal control but outside the frontiers of the provinces. In 1884 they served as bases for the establishment of the governorates of Misiones, Formosa, Chaco, La Pampa, Neuquén, Río Negro, Chubut, Santa Cruz and Tierra del Fuego. The agreement about a frontier dispute with Chile in 1900 created the National Territory of Los Andes; its lands were incorporated into Jujuy, Salta and Catamarca in 1943. La Pampa and Chaco
San Fernando del Valle de Catamarca founded until 1683, by Fernando de Mendoza y Mate de Luna. "Catamarca" comes from Quechua meaning "fortress on the slope". The city, which had only 8,000 inhabitants in 1882 and was reached by a railway line in 1888, grew very slowly, and the region remained poor even in the middle of the 20th century. This situation was exacerbated by nepotism on the part of the ruling Saadi family, before they lost political power in the 1990s. In spite of this, the province remains still politically unstable, and a large part of its population lives in precarious conditions. The warm semi-arid