The history of Uruguay comprises different periods: the pre-Columbian time or early history (up to the 16th century), the Colonial Period (1516–1811), the Period of Nation-Building (1811–1830), and the history of Uruguay as an independent country (1830–present).
Written history began with the arrival of Spanish chroniclers in the expedition of Juan Díaz de Solís in 1516 to the Río de la Plata, which marks the beginning of Spanish occupation of the region.
In 1527 the first European settlement was established in the territory of present-day Uruguay. It was called Sán Lázaro and founded by Sebastian Cabot who was in command of a Spanish expedition. In 1777 the Spanish Crown established the Viceroyalty of the Río de la Plata, which began to disintegrate with the Revolution of May 1810.
The territory of present-day Uruguay was invaded by the United Kingdom of Portugal, Brazil and the Algarve, initially becoming part of the Portuguese kingdom as Cisplatina Province. In 1824 it was annexed to the Empire of Brazil, and a year later it declared its independence, which began the Cisplatine War. In 1828, with British mediation, a peace agreement was signed and the independence of Uruguay was recognized. In 1830 the country's first constitution was promulgated.
Native
The earliest traces of human presence are about 10,000 years old and belong to the hunter-gatherer cultures of Catalanense and Cuareim cultures, which are extensions of cultures originating in Brazil. The earliest discovered bolas is about 7,000 years old. Examples of ancient rock art have been found at Chamangá. About 4,000 years ago, Charrúa and Guarani people arrived here. During precolonial times, Uruguayan territory was inhabited by small tribes of nomadic Charrúa, Chaná, Arachán, and Guarani peoples who survived by hunting and fishing and probably never reached more than 10,000 to 20,000 people. It is estimated that there were about 9,000 Charrúa and 6,000 Chaná and Guaraní at the time of first contact with Europeans in the 1500s. The native peoples had almost disappeared by the time of Uruguay's independence as a result of European diseases and constant warfare.Jermyn, pp. 17–31.
European genocide culminated on 11 April 1831 with the Massacre of Salsipuedes, when most of the Charrúa men were killed by the Uruguayan army on the orders of President Fructuoso Rivera. The remaining 300 Charrúa women and children were divided as household slaves and servants among Europeans.
Colonization
During the colonial era, the present-day territory of Uruguay was known as Banda Oriental (east bank of River Uruguay) and was a buffer territory between the competing colonial pretensions of Portuguese Brazil and the Spanish Empire. The Portuguese first explored the region of present-day Uruguay in 1512–1513.
The first European explorer to land there was Juan Díaz de Solís in 1516, but he was killed by natives. Ferdinand Magellan anchored at the future site of Montevideo in 1520. Sebastian Cabot in 1526 explored Río de la Plata, but no permanent settlements were established at that time. The absence of gold and silver limited the settlement of the region during the 16th and 17th centuries. In 1603, cattle and horses were introduced by the order of Hernando Arias de Saavedra, and, by the mid-17th century, their number had greatly multiplied. The first permanent settlement on the territory of present-day Uruguay was founded by Spanish Jesuits in 1624 at Villa Soriano on the Río Negro, where they tried to establish a Misiones Orientales system for the Charrúas.
In 1680, Portuguese colonists established Colônia do Sacramento on the northern bank of La Plata river, on the opposite coast from Buenos Aires. Spanish colonial activity increased as Spain sought to limit Portugal's expansion of Brazil's frontiers. In 1726, the Spanish established San Felipe de Montevideo on the northern bank and its natural harbor soon developed into a commercial center competing with Buenos Aires. They also moved to capture Côlonia del Sacramento. The 1750 Treaty of Madrid secured Spanish control over Banda Oriental, settlers were given land here and a local cabildo was created.
In 1776, the new Viceroyalty of Rio de la Plata was established with its capital at Buenos Aires, and it included the territory of Banda Oriental. By this time, the land had been divided among cattle ranchers, and beef was becoming a major product. By 1800, more than 10,000 people lived in Montevideo and another 20,000 in the rest of the province. Out of these, about 30 percent were African slaves.
Uruguay's early 19th-century history was shaped by an ongoing conflict between the British, Spanish, Portuguese, and local colonial forces for dominance of the La Plata Basin. In 1806 and 1807, during the Anglo-Spanish War (1796–1808), the British launched invasions. Buenos Aires was taken in 1806 and then liberated by forces from Montevideo led by Santiago de Liniers. In a new and stronger British attack in 1807, Montevideo was occupied by a 10,000-strong British force. The British forces were unable to invade Buenos Aires for the second time, however, and Liniers demanded the liberation of Montevideo in the terms of capitulation. The British gave up their attacks when the Peninsular War turned Great Britain and Spain into allies against Napoleon.
Struggle for independence, 1811–1828
Provincial freedom under Artigas
The May Revolution of 1810 in Buenos Aires marked the end of Spanish rule in the Vice-royalty and the establishment of the United Provinces of the Río de la Plata. The Revolution divided the inhabitants of Montevideo between royalists, who remained loyal to the Spanish crown (many of which remained so), and revolutionaries, who supported the independence of the provinces from Spain. This soon led to the First Banda Oriental campaign between Buenos Aires and the Spanish viceroy.
Local patriots under José Gervasio Artigas issued the Proclamation of 26 February 1811, which called for a war against the Spanish rule. With the help from Buenos Aires, Artigas defeated Spaniards on 18 May 1811 at the Battle of Las Piedras and began Siege of Montevideo. At this point, Spanish viceroy invited Portuguese from Brazil to launch a military invasion of Banda Oriental. Afraid to lose this province to the Portuguese, Buenos Aires made peace with the Spanish viceroy. British pressure persuaded the Portuguese to withdraw in late 1811, leaving the royalists in control of Montevideo. Angered by this betrayal by Buenos Aires, Artigas, with some 4,000 supporters, retreated to Entre Ríos Province. During the Second Banda Oriental campaign in 1813, Artigas joined José Rondeau's army from Buenos Aires and started the second siege of Montevideo, resulting in its surrender to Río de la Plata.
Artigas participated in the formation of the League of the Free People, which united several provinces that wanted to be free from the dominance of Buenos Aires and create a centralized state as envisaged by the Congress of Tucumán. Artigas was proclaimed Protector of this League. Guided by his political ideas (Artiguism), he launched a land reform, dividing land to small farmers.
Brazilian province
The steady growth of the influence and prestige of the Liga Federal frightened the Portuguese government, which did not want the League's republicanism to spread to the adjoining Portuguese colony of Brazil. In August 1816, forces from Brazil invaded and began the Portuguese conquest of the Banda Oriental with the intention of destroying Artigas and his revolution. The Portuguese forces included a fully armed force of disciplined Portuguese European veterans of the Napoleonic Wars with local Brazilian troops. This army, with more military experience and material superiority, occupied Montevideo on 20 January 1817. In 1820, Artigas's forces were finally defeated in the Battle of Tacuarembó, after which Banda Oriental was incorporated into Brazil as its Cisplatina province. During the Brazilian War of Independence in 1822–1825, another siege of Montevideo occurred.
The Thirty-Three
On 19 April 1825, with the support of Buenos Aires, the Thirty-Three Orientals, led by Juan Antonio Lavalleja, landed in Cisplatina. They reached Montevideo on 20 May. On 14 June, in La Florida, a provisional government was formed. On 25 August, the newly elected provincial assembly declared the secession of Cisplatina province from the Empire of Brazil and allegiance to the United Provinces of the Río de la Plata. In response, Brazil launched the Cisplatine War.
This war ended on 27 August 1828 when Treaty of Montevideo was signed. After mediation by Viscount Ponsonby, a British diplomat, Brazil and Argentina agreed to recognize an independent Uruguay as a buffer state between them. As with Paraguay, however, Uruguayan independence was not completely guaranteed, and only the Paraguayan War secured Uruguayan independence from the territorial ambitions of its larger neighbors. The Constitution of 1830, drafted by a constituent assembly, was approved in September 1829 and adopted on 18 July 1830.Burford, p. 17.
The "Guerra Grande", 1839–1852
Soon after achieving independence, the political scene in Uruguay became split between two new parties, both splinters of the former Thirty-Three: the conservative Blancos ("Whites") and the liberal Colorados ("Reds"). The Colorados were led by the first President Fructuoso Rivera and represented the business interests of Montevideo; the Blancos were headed by the second President Manuel Oribe, who looked after the agricultural interests of the countryside and promoted protectionism.
Both parties took their informal names from the color of the armbands that their supporters wore. Initially, the Colorados wore blue, but, when it faded in the sun, they replaced it with red. The parties became associated with warring political factions in neighboring Argentina. The Colorados favored the exiled Argentinian liberal Unitarios, many of whom had taken refuge in Montevideo, while the Blanco president Manuel Oribe was a close friend of the Argentine ruler Juan Manuel de Rosas.
Oribe took Rosas's side when the French navy blockaded Buenos Aires in 1838. This led the Colorados and the exiled Unitarios to seek French backing against Oribe, and, on 15 June 1838, an army, led by the Colorado leader Rivera, overthrew Oribe who fled to Argentina. The Argentinian Unitarios then formed a government-in-exile in Montevideo, and, with secret French encouragement, Rivera declared war on Rosas in 1839. The conflict would last 13 years and become known as the Guerra Grande (the Great War).
In 1840, an army of exiled Unitarios attempted to invade northern Argentina from Uruguay but had little success. In 1842, the Argentinian army overran Uruguay on Oribe's behalf. They seized most of the country but failed to take the capital. The Great Siege of Montevideo, which began in February 1843, lasted nine years. The besieged Uruguayans called on resident foreigners for help. French and Italian legions were formed. The latter was led by the exiled Giuseppe Garibaldi, who was working as a mathematics teacher in Montevideo when the war broke out. Garibaldi was also made head of the Uruguayan navy.
During this siege, Uruguay had two parallel governments: Gobierno de la Defensa in Montevideo, led by Joaquín Suárez (1843–1852). Gobierno del Cerrito (with headquarters at Cerrito de la Victoria neighborhood), ruling the rest of the country, led by Manuel Oribe (1843–1851).