History of Paraguay (to 1811) Buenos Aires in 1580, the steady deterioration in the importance of Asunción contributed to growing political instability within the province. In 1617 the Río de la Plata Province was divided into two smaller provinces: Paraguay, with Asunción as its capital, and Río de la Plata, with headquarters in Buenos Aires. With this action, Asunción lost control of the Río de la Plata estuary and became dependent on Buenos Aires for maritime shipping. In 1776 the crown created the Viceroyalty of Río de la Plata; Paraguay, which had been subordinate to Lima, now became an outpost of Buenos Aires. Located at
Constitution of Paraguay Constitution of Paraguay The Republic of Paraguay is governed under the constitution of 1992, which is the country's sixth since independence from Spain in 1811. The recorded history of Paraguay began in 1516 with the failed expedition of Juan Díaz de Solís to the Río de la Plata estuary, which divides Argentina and Uruguay. After further voyages of conquest, Paraguay became another of Spain's South American colonies. Paraguay finally gained its independence from Spain in 1811. The Constitutional Governmental Regulations, approved by the Congress of Paraguay two years after its independence from Spain in October 1813. The Constitutional Governmental Regulations