Chapter 01 · Pre-1537 - 1607
The Guarani World and the Founding of Asuncion
Long before any European sail reached the rivers, the Guarani peoples cultivated and roamed the basins of the Parana and Paraguay; in 1537 the Spanish founded Asuncion, the 'mother of cities', from which they settled much of southern South America.
For thousands of years the lands between the Parana and Paraguay rivers were home to Guarani-speaking peoples, skilled farmers, hunters and rivermen who cultivated maize, manioc and other crops and lived in dispersed villages across the subtropical forests and grasslands. Their language and culture proved remarkably durable: alone among the major Indigenous tongues of the Americas, Guarani became the everyday speech of the colonial society that grew up around it, and it remains today the co-official language of the republic, spoken by the great majority of Paraguayans. The Guarani are thus not a vanished past but a living foundation of the nation.
Spanish ships entered the Rio de la Plata in the early sixteenth century and pushed up the great rivers in search of a route to the silver of the Andes. On 15 August 1537, the feast of the Assumption, a stockade was completed on the east bank of the Paraguay River and named Nuestra Senora de la Asuncion. When the first settlement at Buenos Aires failed, its survivors withdrew upriver to Asuncion, which for nearly half a century was the headquarters of Spanish activity in eastern South America before Buenos Aires was refounded in 1580.
From Asuncion, Spanish expeditions fanned out to plant towns across a vast region, earning the city its enduring title as the 'mother of cities'. The early colony was shaped by intermarriage between Spanish men and Guarani women, producing a strongly mestizo society in which the Guarani language never lost its hold. Yet Paraguay was a remote and poor frontier, far from the centres of imperial wealth and power, a character of isolation that would mark much of its later history.
“Alone among the great Indigenous tongues of the Americas, Guarani became the everyday speech of the society built around it.”
— On the endurance of the Guarani language
Turning points
- by c. 8000 BCEPeoples & Migration
Peopling of the river basins
Indigenous peoples occupy the basins of the Parana and Paraguay rivers over many millennia, with Guarani-speaking farming and forest peoples coming to predominate in the historic era.
See the data - 15 Aug 1537Formation
- 1541 CEColonisation
Asuncion becomes the Spanish base
After the first Buenos Aires is abandoned, its survivors flee to Asuncion, which becomes the headquarters of Spanish colonial activity in eastern South America.
See the data
Chapter sources: Paraguay, Asuncion, Paraguay: A Country Study
Chapter 02 · 1607 - 1811
The Jesuit Missions and the Colonial Province
For over 150 years the Jesuits gathered the Guarani into mission towns, the reducciones, whose ruins are now a World Heritage site; after the order's expulsion in 1767 and the rise of Buenos Aires, Paraguay's resentful leaders broke from Spain in 1811.
Early in the seventeenth century the Society of Jesus began to build among the Guarani a remarkable network of mission towns, the reducciones. Within the Parana and Uruguay basins these communities governed the lives of as many as 150,000 Guarani in some thirty settlements, organised around a central plaza, a great church, workshops, schools and communal fields. They blended Guarani skill and labour with Christian instruction and European craft, producing the Baroque art and architecture whose surviving ruins at La Santisima Trinidad de Parana and Jesus de Tavarangue were inscribed as a UNESCO World Heritage site in 1993, the only such site in Paraguay.
The missions had to defend themselves against slave raiders from Sao Paulo and, in 1754-1757, against a combined Spanish-Portuguese campaign meant to enforce the Treaty of Madrid of 1750, which would have transferred seven mission towns to Portuguese control. The Guarani resistance to that partition, the so-called Guarani War, deepened official suspicion of Jesuit power and wealth. In 1767 King Charles III expelled the Jesuits from all Spanish dominions; the mission settlements were abandoned, the Guarani dispersed to estates or forest, and their economy collapsed into ruin.
Paraguay remained a poor, landlocked frontier of the Spanish empire, and in 1776 the creation of the Viceroyalty of the Rio de la Plata made Asuncion subordinate to Buenos Aires. As the river port grew rich, the leaders of Paraguay resented their province's decline. When the May Revolution of 1810 in Buenos Aires sought to extend its authority over Paraguay, they refused. A Buenos Aires army sent to compel them was defeated in 1811, and in May of that year Paraguay's own officers deposed the Spanish governor and took the path to independence.
“Within the great basins the mission towns governed the lives of as many as 150,000 Guarani.”
— On the Jesuit reducciones of Paraguay
Turning points
- 1609-1767Religion
- 1750-1757War & Rupture
Treaty of Madrid and the Guarani War
A planned transfer of seven mission towns to Portugal provokes Guarani resistance and a Spanish-Portuguese campaign, hardening official hostility to the Jesuits.
See the data - 1767 CEReligion
- 1776 CEPolitics & Power
Viceroyalty of the Rio de la Plata
The new viceroyalty centred on Buenos Aires makes Asuncion and Paraguay dependent on the river port, feeding Paraguayan resentment of its decline.
Chapter sources: Paraguay: The colonial period, Jesuit Missions of La Santisima Trinidad de Parana and Jesus de Tavarangue, Paraguay
Chapter 03 · 1811 - 1862
Independence, Dr Francia and the Lopez Dynasty
After the break with Spain in 1811, Paraguay was sealed off from the world by the iron dictatorship of Dr Jose Gaspar Rodriguez de Francia; his successors Carlos Antonio Lopez and Francisco Solano Lopez reopened the country and built it into an ambitious, militarised state.
On the night of 14-15 May 1811 Paraguayan officers deposed the Spanish governor and ended colonial rule, and in 1813 a congress proclaimed the republic. Power soon gathered in the hands of the lawyer Jose Gaspar Rodriguez de Francia, who in 1814 had himself named Supreme Dictator and in 1816 perpetual dictator, ruling until his death in 1840 as 'El Supremo'. Dogmatic, austere and suspicious of the outside world, he sealed Paraguay off almost completely, banning foreign commerce and river traffic, curbing the Church and the old creole elite, and turning the country into a self-sufficient hermit state largely free of the civil wars that wracked its neighbours.
After an interval, Carlos Antonio Lopez became leader in 1841 and ruled until 1862, reversing Francia's isolation. He opened Paraguay to the world, signing commercial treaties with Brazil, Britain, France, the United States and Argentina, and pursued an ambitious programme of modernisation, building telegraphs, a railway, an iron foundry, shipyards and schools, and expanding the army. Under his rule Paraguay became, for its size, one of the more developed and centrally governed states of the region, though political life remained firmly in the hands of one family.
On Carlos Antonio's death in 1862 his eldest son, Francisco Solano Lopez, took power. Born in 1827, ambitious and steeped in the military culture of mid-century Europe, he had built up a large and well-equipped army and harboured grand designs for Paraguay's place in the affairs of the Plata. His father is said to have warned him to settle disputes by diplomacy rather than war. Within two years that warning would be forgotten, as Paraguay was drawn into the most destructive conflict in South American history.
“He sealed Paraguay off almost completely, turning the country into a self-sufficient hermit state.”
— On the rule of Dr Francia, 'El Supremo'
Turning points
- 14-15 May 1811Independence
Independence from Spain
Paraguayan officers depose the Spanish governor at Asuncion without bloodshed, ending colonial rule; a republic is proclaimed in 1813.
See the data - 1814-1840Politics & Power
- 1841-1862Economy & Trade
Carlos Antonio Lopez modernises Paraguay
Ending Francia's isolation, Carlos Antonio Lopez opens the country, signs commercial treaties, and builds railways, foundries and schools while enlarging the army.
See the data - 1862 CEPolitics & Power
Francisco Solano Lopez takes power
On his father's death, Francisco Solano Lopez becomes leader, inheriting a large army and ambitions that would soon plunge Paraguay into war.
Figures of the era
Jose Gaspar Rodriguez de Francia1766-1840
Supreme Dictator of Paraguay
Lawyer and leader of the independence movement who, as 'El Supremo', ruled Paraguay from 1814 until his death in one of the most absolute dictatorships of nineteenth-century Latin America, sealing the country off from the outside world.
Carlos Antonio Lopez1792-1862
President of Paraguay
Successor to Francia who ended Paraguay's isolation, opened it to foreign trade and undertook wide-ranging modernisation, while building the army his son would later lead into a catastrophic war.
Chapter sources: History of Paraguay, Jose Gaspar Rodriguez de Francia, Carlos Antonio Lopez, Francisco Solano Lopez, Paraguay: The colonial period
Chapter 04 · 1864 - 1870
The War of the Triple Alliance
Paraguay's war against the combined forces of Brazil, Argentina and Uruguay became the deadliest conflict in South American history, ending in the death of Francisco Solano Lopez and the loss of a vast, bitterly disputed share of the nation's people.
The war grew out of rivalries over the Plata region and the fate of Uruguay. After Francisco Solano Lopez intervened in Uruguayan politics and clashed with Brazil, he launched an invasion of the Brazilian province of Mato Grosso in late 1864, then sought to march through Argentine territory, drawing Argentina into the war. In May 1865 Brazil, Argentina and Uruguay bound themselves in the secret Treaty of the Triple Alliance against Paraguay. Lopez's early offensives faltered, and his ambitious invasion of the south turned to disaster.
What followed was a long war of attrition fought largely on Paraguayan soil. The allies defeated Lopez's army at Tuyuti in May 1866, took the great fortress of Humaita in 1868, and drove ever deeper into the country, occupying Asuncion. Lopez refused to surrender, retreating northward with a dwindling army that increasingly included old men and boys, until Brazilian troops killed him at Cerro Cora on 1 March 1870, bringing the war to an end. Paraguay lost territory to Brazil and Argentina and was occupied for years afterward.
The human cost was staggering and remains contested among historians. By the most cited estimates Paraguay's prewar population of well over half a million was reduced to roughly 220,000 by 1871, of whom only a small fraction were adult men, implying that more than half the population, and the overwhelming majority of military-age males, perished from combat, disease and famine. The exact figures, including the prewar baseline, are disputed and should be treated as estimates; what is not in doubt is that the war was a demographic catastrophe from which Paraguay took generations to recover.
“What is not in doubt is that the war was a demographic catastrophe from which Paraguay took generations to recover.”
— On the contested toll of the Triple Alliance war
Turning points
- 1864 CEWar & Rupture
Paraguay invades Mato Grosso
Francisco Solano Lopez opens hostilities by invading the Brazilian province of Mato Grosso, the first move in a war that would soon include Argentina and Uruguay.
See the data - 1 May 1865War & Rupture
Treaty of the Triple Alliance
Brazil, Argentina and Uruguay sign a secret alliance against Paraguay, committing to wage war until the fall of Lopez.
See the data - 24 May 1866War & Rupture
Battle of Tuyuti
The allies inflict a heavy defeat on Paraguay at Tuyuti, one of the largest battles of the war, beginning the slow destruction of Lopez's army.
See the data - 1 Mar 1870War & Rupture
Death of Lopez at Cerro Cora
Brazilian troops kill Francisco Solano Lopez at Cerro Cora, ending the war; Paraguay has lost territory and a vast, disputed share of its population (figures are estimates).
See the data
Figures of the era
Francisco Solano Lopez1827-1870
President and commander, War of the Triple Alliance
Son of Carlos Antonio Lopez who led Paraguay into the War of the Triple Alliance against Brazil, Argentina and Uruguay. He refused to surrender even as the country was overrun and was killed at Cerro Cora in 1870, leaving Paraguay devastated.
Chapter sources: War of the Triple Alliance, Francisco Solano Lopez, History of Paraguay
Chapter 05 · 1870 - 1947
Rebuilding and the Chaco War
A shattered Paraguay rebuilt slowly under unstable governments and foreign economic influence, then fought and won the gruelling Chaco War against Bolivia (1932-1935), only to fall into political turmoil and a brief but bitter civil war.
After 1870 Paraguay faced the immense task of rebuilding a ruined and depopulated country. Foreign capital and immigrants returned, and great tracts of land passed into private and foreign hands, but political life was unstable, dominated by the rivalry of two parties, the Colorados and the Liberals, that emerged in the 1880s. The Liberals held power for much of the early twentieth century, presiding over a fragile recovery shadowed by frequent coups and the unresolved question of the country's western frontier in the Gran Chaco.
That vast, sparsely settled wilderness north of the Pilcomayo became the focus of a new war. Bolivia, landlocked since its defeat by Chile in the War of the Pacific, sought an outlet to the Atlantic through the Chaco and believed the region held oil. Tensions over conflicting claims erupted into open war in 1932. Despite Bolivia's larger population and better equipment, Paraguayan soldiers, more suited to the harsh lowland conditions, gradually prevailed; about 100,000 men died, many from disease and thirst, before a truce in June 1935. A peace treaty signed at Buenos Aires in 1938 awarded most of the disputed Chaco to Paraguay.
Victory in the Chaco brought national pride but also political upheaval, as veterans and reformist officers grew impatient with the old order. A succession of governments, some authoritarian, struggled to channel these forces. In 1947 a short, savage civil war pitted the Colorado Party and its allies against an opposition coalition; the Colorados won, consolidating a one-party dominance that would shape Paraguay for decades and prepare the ground for the dictatorship to come.
“About 100,000 men died, many from disease and thirst, before a truce in June 1935.”
— On the toll of the Chaco War
Turning points
- 1870s-1880sPolitics & Power
Rebuilding and the party system
Paraguay slowly rebuilds after the war as foreign capital returns and land is sold off; the Colorado and Liberal parties emerge to dominate national politics.
- 1932-1935War & Rupture
The Chaco War
Paraguay and Bolivia fight a costly war over the Gran Chaco; about 100,000 men die before a 1935 truce, with most of the region awarded to Paraguay by the 1938 treaty.
See the data - 1947 CEPolitics & Power
Paraguayan Civil War
A brief, bloody civil war ends in victory for the Colorado Party, entrenching one-party dominance and clearing the path to authoritarian rule.
Chapter sources: Chaco War, History of Paraguay
Chapter 06 · 1954 - present
The Stroessner Era, Democracy and Itaipu
General Alfredo Stroessner seized power in 1954 and ruled for thirty-five years; his overthrow in 1989 opened a democratic era, marked by a new constitution that made Guarani co-official and an economy transformed by the binational Itaipu dam.
On 4 May 1954 General Alfredo Stroessner led a coup that deposed President Federico Chaves, and he soon assumed the presidency, beginning one of the longest dictatorships in Latin American history. Ruling through the Colorado Party and the armed forces, he combined patronage with severe repression: opponents were imprisoned, tortured or driven into exile, and Paraguay became a quiet partner in the cross-border Operation Condor. Re-elected as the effectively sole candidate term after term, Stroessner held power until 3 February 1989, when his own military commander, General Andres Rodriguez, overthrew him.
The fall of Stroessner opened a difficult transition to democracy. Rodriguez won elections in 1989, and in 1992 a Constituent Assembly enacted a new constitution that established a presidential republic, guaranteed civil liberties and made Guarani a co-official language alongside Spanish, recognising in law the tongue that most Paraguayans speak. The Colorado Party nonetheless kept its grip on power for years, and the transition was shaken by crises, including a 1996 military standoff and the assassination of a vice-president in 1999, before democratic institutions slowly took hold.
Through these decades Paraguay's economy was reshaped by the Itaipu dam on the Parana River, a vast binational project built jointly with Brazil under a 1973 treaty; its turbines began generating power in 1984, making the country a major exporter of hydroelectricity. In 2008 the former bishop Fernando Lugo won the presidency, ending more than six decades of unbroken Colorado rule in the first transfer of power between rival parties at the ballot box in Paraguay's history. Lugo was removed by a contested impeachment in 2012, and the Colorados later returned to office, but Paraguay entered the 2020s as a functioning, if still unequal, democratic republic, proud of its Guarani heritage and its rivers' power.
“In 2008 the country saw the first electoral transfer of power between rival parties in its history.”
— On Paraguay's democratic maturing
Turning points
- 4 May 1954Politics & Power
- 1984 CEEconomy & Trade
Itaipu dam begins generating
The binational Itaipu hydroelectric dam on the Parana, built with Brazil under a 1973 treaty, starts producing power, transforming Paraguay's economy.
See the data - 3 Feb 1989Politics & Power
- 20 Jun 1992Politics & Power
- 2008 CEPolitics & Power
First opposition victory
Former bishop Fernando Lugo wins the presidency, ending more than sixty years of Colorado Party rule in Paraguay's first electoral transfer of power between parties.
Figures of the era
Alfredo Stroessner1912-2006
Military dictator of Paraguay
Army general who seized power in 1954 and ruled Paraguay for thirty-five years through the Colorado Party and the military, in one of Latin America's longest dictatorships, until his overthrow in 1989.
Fernando Lugo1951-
President of Paraguay
Former Roman Catholic bishop who won the presidency in 2008, ending more than six decades of Colorado Party rule in the first transfer of power between parties in Paraguay's history; he was removed by a disputed impeachment in 2012.
Chapter sources: Alfredo Stroessner, History of Paraguay, Itaipu Dam, Fernando Lugo, Guarani language