Jesuit missions among the Guaraní

The Jesuit missions among the Guaraní were a type of settlement for the Guaraní people ("Indians" or "Indios") in an area straddling the borders of present-day Argentina, Brazil and Paraguay, known locally as the triple frontier. The missions were established by the Jesuit Order of the Catholic Church early in the 17th century and ended in the late 18th century after the expulsion of the order from the Americas.

Source: Wikipedia — Jesuit missions among the Guaraní (CC BY-SA 4.0)