Litoral

The Litoral — the riverine Mesopotamia between the Paraná and Uruguay. It was shaped by the 17th-century Jesuit missions among the Guaraní (the ruins of San Ignacio) and later by Italian, German and Slavic farm colonies in Misiones. Subtropical and river-oriented, leaning culturally toward Paraguay and southern Brazil — mate, chamamé music, the Iguazú Falls — it was the federalist heartland whose resistance to Buenos Aires's centralism helped drive the 19th-century civil wars.

• Existed: 1588 CE – present
• Type: Entity