Chaco is one of the 23 provinces of the Argentine Republic. It has one of the largest indigenous populations as well as numerous descendants of immigrants from Europe: Czechs, Slovaks, Bulgarians, Croats, Montenegrins, Italians and Spaniards.
In this second group the Mennonites (Los Menonitas) enter, this is a closed social group that maintains its own language, its customs and its religion.