Argentine Declaration of Independence in the context of San Miguel de Tucumán

Argentina, officially the Argentine Republic, is a country in the southern half of South America. It covers an area of 2,780,085 km (1,073,397 sq mi), making it the second-largest country in South America after Brazil, the fourth-largest country in the Americas, and the eighth-largest country in the world. Argentina shares the bulk of the Southern Cone with Chile to the west, and is also bordered by Bolivia and Paraguay to the north, Brazil to the northeast, Uruguay and the South Atlantic Ocean to the east, and the Drake Passage to the south. Argentina is a federal state subdivided into twenty-three provinces, and one autonomous city, which is the federal capital and largest city of the nation, Buenos Aires. The provinces and the capital have their own constitutions, but exist under a federal system. Argentina claims sovereignty over the Falkland Islands, South Georgia and the South Sandwich Islands, the Southern Patagonian Ice Field, and a part of Antarctica.

The earliest recorded human presence in modern-day Argentina dates back to the Paleolithic period. The Inca Empire expanded to the northwest of the country in pre-Columbian times. The modern country has its roots in Spanish colonisation of the region during the 16th century. Argentina rose as the successor state of the Viceroyalty of the Río de la Plata, a Spanish overseas viceroyalty founded in 1776. The Argentine Declaration of Independence on July 9 of 1816 and the Argentine War of Independence (1810–1825) were followed by an extended civil war that lasted until 1880, culminating in the country's reorganisation as a federation. The country thereafter enjoyed relative peace and stability, with several subsequent waves of European immigration, mainly of Italians and Spaniards, influencing its culture and demography.

The National Reorganization Process (Spanish: Proceso de Reorganización Nacional, PRN; often simply el Proceso, "the Process") was the military dictatorship that ruled Argentina from the coup d'état of March 24, 1976, until the unconditional transfer of power to a government elected by the citizens on December 10, 1983. In Argentina it is often known simply as the última junta militar ("last military junta"), última dictadura militar ("last military dictatorship"), última dictadura cívico-militar ("last civil–military dictatorship"), or última dictadura cívico-eclesial-militar ("last civil–clerical-military dictatorship") — because there have been several in the country's history and no others like it since it ended. It took the form of a bureaucratic-authoritarian state and was characterized by establishing a systematic plan of state terrorism, which included murders, kidnappings, torture, forced disappearances, and the kidnapping of babies (and concealment of their identity). It is considered "the bloodiest dictatorship in Argentine history".

The Argentine Armed Forces seized political power during the March 1976 coup against the presidency of Isabel Perón, the successor and widow of former President Juan Perón, at a time of growing economic and political instability. Congress was suspended, political parties were banned, civil rights were limited, and free market and deregulation policies were introduced. The President of Argentina and his ministers were appointed from military personnel while leftists and Peronists were persecuted. The junta launched the Dirty War, a campaign of state terrorism against opponents involving torture, extrajudicial murder and systematic forced disappearances. Public opposition due to civil rights abuses and inability to solve the worsening economic crisis in Argentina caused the junta to invade the Falkland Islands in April 1982. After starting and then losing the Falklands War against the United Kingdom in June, the junta began to collapse and finally relinquished power in 1983 with the election of President Raúl Alfonsín.

The Argentine War of Independence (Spanish: Guerra de Independencia Argentina) was a secessionist civil war (until 1816) fought from 1810 to 1818 by Argentine patriotic forces under Manuel Belgrano, Juan José Castelli, Martin Miguel de Guemes and José de San Martín against royalist forces loyal to the Spanish crown. On July 9, 1816, an assembly met in San Miguel de Tucumán, declaring independence with provisions for a national constitution.

The National Historic Monuments of Argentina are buildings, sites and features in Argentina listed by national decree as historic sites. This designation encourages greater protection under the oversight of the Comisión Nacional de Museos, Monumentos y Lugares Históricos (National Commission of Museums, Monuments and Historic Places), created in 1940. In addition, provinces also have local lists of historic monuments.

There are approximately 400 buildings or sites on the list. Most are buildings or sites from the pre-Hispanic or Colonial periods and some are battlefields and other locations associated with the independence of the country. In recent years the government has been making efforts to include sites on the list that reflect the country's industrial and immigrant heritage.

The Congress of Tucumán (Spanish: Congreso de Tucumán) was the representative assembly, initially meeting in San Miguel de Tucumán, that declared the independence of the United Provinces of South America (modern-day Argentina, Uruguay, part of Bolivia) on July 9, 1816, from the Spanish Empire.

The economic history of Argentina is one of the most studied, owing to the "Argentine paradox". As a country, it had achieved advanced development in the early 20th century but experienced a reversal relative to other developed economies, which inspired an enormous wealth of literature and diverse analysis on the causes of this relative decline. Since independence from Spain in 1816, the country has defaulted on its debt nine times. Inflation has often risen to the double digits, even as high as 5,000%, resulting in several large currency devaluations.

Argentina possesses definite comparative advantages in agriculture because the country is endowed with a vast amount of highly fertile land. Between 1860 and 1930, exploitation of the rich land of the pampas strongly pushed economic growth. During the first three decades of the 20th century, Argentina outgrew Canada and Australia in population, total income, and per capita income. By 1913, Argentina was among the world's ten wealthiest states per capita.

Argentina, officially the Argentine Republic, is a country located in the southern cone of South America and with a claimed portion of Antarctica. It covers an area of 2,780,085 km (1,073,397 mi), making it the second-largest country in South America after Brazil, the fourth-largest country in the Americas, and the eighth-largest country in the world. Argentina shares the bulk of the Southern Cone with Chile to the west, and is also bordered by Bolivia and Paraguay to the north, Brazil to the northeast, Uruguay and the South Atlantic Ocean to the east, and the Drake Passage to the south. Argentina is a federal state subdivided into twenty-three provinces, and one autonomous city, which is the federal capital and largest city of the nation, Buenos Aires. The provinces and the capital have their own constitutions, but exist under a federal system. Argentina claims sovereignty over the Falkland Islands, South Georgia and the South Sandwich Islands, the Southern Patagonian Ice Field, and a part of Antarctica.

The earliest recorded human presence in modern-day Argentina dates back to the Paleolithic period. The Inca Empire expanded to the northwest of the country in pre-Columbian times. The modern country has its roots in Spanish colonisation of the region during the 16th century. Argentina rose as the successor state of the Viceroyalty of the Río de la Plata, a Spanish overseas viceroyalty founded in 1776. The Argentine Declaration of Independence on July 9 of 1816 and the Argentine War of Independence (1810–1825) were followed by an extended civil war that lasted until 1880, culminating in the country's reorganisation as a federation. The country thereafter enjoyed relative peace and stability, with several subsequent waves of European immigration, mainly of Italians and Spaniards, influencing its culture and demography.

The Federal League (Spanish: Liga Federal), also known as the League of the Free Peoples (Liga de los Pueblos Libres), was a short lived confederation of provinces located in South America. From 1815 to 1820 it tried to establish a confederal organization for the State that was emerging from the May Revolution in the war of independence against the Spanish Empire in part of what is now Uruguay, Argentina and Brazil.

Founded and led by José Gervasio Artigas, it proclaimed independence from the Spanish Crown in 1815 and sent provincial delegates to the Congress of Tucumán with instructions regarding the nonnegotiable objective of declaring full independence for the United Provinces of the Río de la Plata and establishing a confederation of provinces, all of them on equal footing and the government of each being directly accountable to its peoples by direct democratic means of government. The delegates from these provinces were rejected on formalities from the Congress that declared the independence of the United Provinces of South America on July 9, 1816.

The federalization of Buenos Aires was the process by which the city of Buenos Aires, until then capital of the province of Buenos Aires, was politically separated from the latter to put it under direct control of the national government as a federal territory. That had been a constant aspiration of the other provinces of Argentina since the formation of the federation. However, harsh political debates around the issue prevented the federalization until 1880, more than sixty years and a long civil war later.