South America: from the wars of independence to today, 1808–2026

by @chrisjager · 22 Jan 1808 – 1 Oct 2026

Read the article: South America from the Wars of Independence to Today, 1808–2026

About this map

In 1808 South America belonged to two crowns: Spain's viceroyalties and Portugal's Brazil. Napoleon's invasion of Iberia broke both. This map follows what came next, year by year through the wars of independence (the juntas of 1810, the royalist reconquest, San Martín over the Andes, Bolívar from the Orinoco to Potosí, Ayacucho) and then through two centuries of republics: Gran Colombia and the Peru–Bolivian Confederation breaking up, Uruguay born as a buffer state, Paraguay cut down in 1870, Bolivia losing its coast and Peru its nitrate south to Chile, the conquest of Patagonia, Araucanía and the Chaco, Acre, Panama, the Chaco War, the Rio Protocol and the Falklands. Simplifications: territories follow modern provincial borders with hand-drawn cuts where the old line ran elsewhere. Colours show who actually held the land where that is known (royalist or patriot armies, occupations); in the empty Amazon they follow the generally mapped claims, and the indigenous south is shown as free until the state conquered it. Small disputes (Amapá, Pirara, Palmas, the Beagle islands, Essequibo) appear as markers only. Frontier lines in the pampas and the pre-war lines in the Chaco and the upper Amazon are approximate. Sources: Wikipedia articles on the Spanish American wars of independence and on each war, treaty and arbitration named in the markers; Natural Earth borders.

Text version: https://www.movingpolygons.com/map/chrisjager/south-america-from-the-wars-of-independence-to-today-18082026.md

Timeline

DateWhat the map shows
22 Jan 18081808 · Spain's viceroyalties, Portugal's Brazil
31 Dec 18091809 · First juntas crushed; Cayenne occupied
31 Dec 18101810 · Juntas from Caracas to Buenos Aires
31 Dec 18111811 · Paraguay and Venezuela declare independence
31 Dec 18121812 · Royalists retake Venezuela and Quito
31 Dec 18131813 · Bolívar's Admirable Campaign frees Caracas
31 Dec 18141814 · Royalists retake Chile and Venezuela
9 Jul 18161816 · Reconquest: only the Río de la Plata free
5 Apr 18181817–18 · San Martín crosses the Andes: Chile free
17 Dec 18191819 · Boyacá: Bolívar founds Gran Colombia
31 Dec 18201820 · San Martín lands in Peru; Guayaquil rises
31 Dec 18211821 · Carabobo, Lima, Panama; Cisplatina annexed
1 Dec 18221822 · Pichincha; Brazil breaks with Portugal
31 Dec 18231823 · The last Portuguese troops leave Brazil
9 Dec 18241824 · Ayacucho: Spain's last army surrenders
25 Aug 18251825 · Bolivia founded; the Banda Oriental rises
23 Jan 18261826 · Callao and Chiloé: Spain's last flags fall
27 Aug 18281828 · Uruguay is born as a buffer state
17 Dec 18301830 · Bolívar dies; Gran Colombia breaks in three
31 Dec 18331833 · Britain takes the Falklands; Rosas's march
1 May 18371836–37 · Peru–Bolivian Confederation; Rio Grande
31 Dec 18391839 · Yungay: the Confederation is broken up
1 Mar 18451843–45 · Chile at Magellan; Rio Grande rejoins
1 May 18531852–53 · Rosas falls; Buenos Aires secedes
31 Dec 18611861 · Pavón: Argentina reunited
1 Aug 18651865 · Paraguay invades Mato Grosso and Corrientes
27 Mar 18671867 · Bolivia cedes Amazon land to Brazil
1 Mar 18701870 · Paraguay crushed and cut down
31 Dec 18791879 · War of the Pacific; Roca on the Río Negro
23 Jul 18811881 · Chile in Lima; a treaty divides Patagonia
18851883–85 · Ancón; Patagonia and Araucanía conquered
15 Nov 18891889 · Brazil becomes a republic
31 Dec 18991899 · Awards: Puna de Atacama, Guiana border
18 Nov 19031903 · Panama secedes; Acre goes to Brazil
17 Aug 19301929–30 · Tacna back to Peru; Leticia to Colombia
19331932–33 · Chaco War; Peruvians seize Leticia
14 Jun 19351935 · Chaco truce: Paraguay holds the Chaco
21 Jul 19381938 · Chaco treaty fixes the border
1 Sep 19411941 · Peru invades Ecuador
28 Feb 19421942 · Rio Protocol: Ecuador gives up the Amazon
26 May 19661966 · Guyana independent
25 Nov 19751975 · Suriname independent
1 May 19821982 · Argentina occupies the Falklands
14 Jun 19821982 · Britain retakes the Falklands
26 Oct 19981998 · Peru and Ecuador settle their last border
1 Oct 2026Today · Twelve republics and French Guiana

Layers

Spanish Empire (royalist-held) · Portuguese Brazil · Empire of Brazil → Brazil (republic 1889) · United Provinces of the Río de la Plata → Argentina · State of Buenos Aires (1852–61) · Federal League of Artigas (1814–20) · Uruguay · Paraguay · Chile · Peru · Bolivia · Peru–Bolivian Confederation (1836–39) · Gran Colombia (1819–30) → New Granada → Colombia · Venezuela · Quito and Guayaquil juntas → Ecuador · Panama · Riograndense Republic (1836–45) · British Guiana and the Falkland Islands · Guyana · Dutch Guiana · Suriname · French Guiana · Indigenous land beyond state control

Events

  • 7 Mar 1808, Portuguese court arrives in Rio de Janeiro: Prince Regent João and the court flee Napoleon; Rio becomes the seat of the Portuguese empire.
  • 25 May 1809, Chuquisaca revolt: Creoles depose the Audiencia president; first revolt against Spanish rule in Spanish America.
  • 19 Apr 1810, Caracas junta deposes Captain-General Emparán: The Caracas cabildo removes Emparán and forms a junta that rules in the name of Ferdinand VII; the Venezuelan revolution begins.
  • 25 May 1810, May Revolution in Buenos Aires: A cabildo abierto deposes Viceroy Cisneros and installs the Primera Junta.
  • 14 May 1811, Paraguay declares independence: Creoles depose Governor Velasco in Asunción and break with both Spain and Buenos Aires.
  • 20 Jun 1811, Battle of Huaqui: Goyeneche's royalists rout the Buenos Aires army and retake Upper Peru.
  • 5 Jul 1811, Venezuela declares independence: The Congress of Venezuela proclaims absolute independence from Spain, founding the First Republic.
  • 6 Aug 1813, Bolívar enters Caracas: Second Republic: The Admirable Campaign ends with Bolívar entering Caracas; he declares the Second Republic the next day.
  • 1 Oct 1814, Battle of Rancagua: Osorio defeats O'Higgins and Carrera; the Patria Vieja ends.
  • 6 Dec 1815, Cartagena falls to Morillo after siege: After a 106-day siege the last major patriot stronghold on the New Granada coast falls to the Spanish expeditionary army.
  • 6 May 1816, Morillo's army takes Bogotá: Spanish forces enter Santafé de Bogotá, completing the reconquest of New Granada; patriot leaders are tried and shot.
  • 9 Jul 1816, Argentine independence declared at Tucumán: The Congress of Tucumán declares the United Provinces independent of Spain.
  • 12 Feb 1817, Battle of Chacabuco: San Martin's Army of the Andes beats the royalists and opens Santiago.
  • 17 Jul 1817, Patriots take Angostura: Patriot forces capture Angostura on the Orinoco and by 3 August clear the royalists from Guayana, giving Bolívar a base.
  • 5 Apr 1818, Battle of Maipú: San Martin destroys Ordonez's army and secures Chilean independence.
  • 7 Aug 1819, Battle of Boyacá: Bolívar and Santander defeat the royalist army near Tunja; Viceroy Sámano flees Bogotá and the interior of New Granada is free.
  • 17 Dec 1819, Gran Colombia founded at Angostura: The Congress of Angostura passes the Fundamental Law uniting Venezuela and New Granada (later Quito) into the Republic of Colombia.
  • 8 Sep 1820, Liberating Expedition lands at Pisco: San Martin's 4,000 men land in Peru from Chilean ships under Cochrane.
  • 24 Jun 1821, Battle of Carabobo: Bolívar defeats La Torre's royalists and opens Caracas; only Puerto Cabello and parts of the west stay Spanish.
  • 28 Jul 1821, Peru declares independence in Lima: San Martin proclaims independence in the Plaza Mayor after the royalists leave Lima.
  • 24 May 1822, Battle of Pichincha: Sucre defeats Aymerich on the slopes above Quito; the Audiencia of Quito is liberated and joins Gran Colombia.
  • 7 Sep 1822, Brazil declares independence: Prince Pedro proclaims independence on the banks of the Ipiranga; he is crowned Emperor in December.
  • 24 Jul 1823, Battle of Lake Maracaibo: Admiral Padilla destroys Laborde's Spanish squadron; Morales capitulates and the last Spanish forces leave Venezuela in August.
  • 9 Dec 1824, Battle of Ayacucho: Sucre defeats Viceroy La Serna; end of Spanish rule on the continent.
  • 6 Aug 1825, Bolivia declares independence: Assembly in Chuquisaca founds the Republic of Bolivar, later Bolivia.
  • 25 Aug 1825, Congress of Florida unites the Banda Oriental with the Provinces: After the landing of the Thirty-Three Orientals the provincial congress declares independence from Brazil.
  • 27 Aug 1828, Preliminary Peace Convention creates Uruguay: Brazil and the United Provinces, under British mediation, agree to an independent Oriental State.
  • 17 Dec 1830, Death of Bolívar: Simón Bolívar dies near Santa Marta as Gran Colombia breaks into Venezuela, New Granada and Ecuador.
  • 3 Jan 1833, Britain retakes the Falkland Islands: HMS Clio expels the Argentine garrison at Port Louis and the islands become British.
  • 1 May 1837, Peru-Bolivian Confederation founded: Santa Cruz unites North and South Peru and Bolivia; Chile declares war.
  • 20 Jan 1839, Battle of Yungay: Chile and Peruvian exiles destroy the Confederation's army.
  • 18 Nov 1841, Battle of Ingavi: Ballivian beats Peruvian invaders; Gamarra killed.
  • 3 Feb 1852, Battle of Caseros: Urquiza, with Brazil and Uruguay, defeats Rosas; Buenos Aires then secedes in September.
  • 11 Jun 1865, Battle of Riachuelo: The Brazilian fleet destroys the Paraguayan navy on the Paraná.
  • 1 Mar 1870, Solano López killed at Cerro Corá: The last Paraguayan force is destroyed; Paraguay loses about 40% of its claimed territory.
  • 14 Feb 1879, Chile occupies Antofagasta: Chilean troops land unopposed; start of the War of the Pacific.
  • 25 May 1879, Roca's campaign reaches the Río Negro: Roca's columns clear the pampa; the Conquest of the Desert opens Patagonia to Argentina.
  • 26 May 1880, Battle of Tacna: Chile defeats the Peruvian-Bolivian allied army; Bolivia leaves the war.
  • 17 Jan 1881, Chile occupies Lima: After Chorrillos and Miraflores Chilean troops enter the Peruvian capital.
  • 23 Jul 1881, Argentina and Chile sign the boundary treaty: The Andes and the Strait of Magellan divide the two countries; Tierra del Fuego is split.
  • 20 Oct 1883, Treaty of Ancón: Peru cedes Tarapaca to Chile; Tacna and Arica occupied for ten years.
  • 15 Nov 1889, Brazil becomes a republic: Marshal Deodoro da Fonseca deposes Pedro II.
  • 3 Oct 1899, Paris Arbitral Award on the Venezuela boundary: The tribunal fixes the Venezuela–British Guiana boundary from Punta Barima, giving Britain most of the Essequibo; Venezuela later contests it.
  • 3 Nov 1903, Panama declares independence from Colombia: With US naval backing Panama separates from Colombia; the Hay-Bunau-Varilla Treaty granting the Canal Zone follows on 18 November.
  • 15 Aug 1914, Panama Canal opens: The steamer Ancon makes the first official transit. The United States runs the canal and a zone on both banks until the handover of 1979–99.
  • 3 Jun 1929, Treaty of Lima: Chile keeps Arica, Peru regains Tacna (28 Aug 1929).
  • 29 Sep 1932, Fall of Fortín Boquerón: Paraguay captures the Bolivian fort after a three-week siege, the first big success of the Chaco War.
  • 5 Jul 1941, Peru invades Ecuador: War of 1941: Peruvian forces cross the Zarumilla and occupy El Oro and parts of Loja and the Amazon until the 1942 Rio Protocol.
  • 21 Apr 1960, Brasília inaugurated: Brazil's capital moves from Rio to the new inland city.
  • 11 Sep 1973, Coup against Allende: The military bombs La Moneda; Pinochet's dictatorship begins.
  • 24 Mar 1976, Argentine military coup: A junta under Videla overthrows Isabel Perón and begins the dictatorship.
  • 2 Apr 1982, Argentina invades the Falklands: Operation Rosario takes Port Stanley; Britain retakes the islands by 14 June.
  • 26 Mar 1991, Treaty of Asunción founds Mercosur: Argentina, Brazil, Paraguay and Uruguay create a common market.
  • 24 Nov 2016, FARC peace agreement signed: The revised accord between the Colombian government and the FARC, signed in Bogotá, ends a conflict dating from 1964.
  • 3 Jan 2026, US forces seize Maduro in Caracas: US forces capture President Maduro; Delcy Rodríguez is sworn in as interim leader on 5 January.