Buenos Aires ( or ; ), officially the Autonomous City of Buenos Aires ( es, link=no, Ciudad Autónoma de Buenos Aires), is the
capital
Capital may refer to:
Common uses
* Capital city, a municipality of primary status
** List of national capital cities
* Capital letter, an upper-case letter Economics and social sciences
* Capital (economics), the durable produced goods used f ...
and
primate city
A primate city is a city that is the largest in its country, province, Federated state, state, or region, and disproportionately larger than any others in the urban hierarchy. A ''primate city distribution'' is a rank-size distribution that has on ...
of
Argentina
Argentina (), officially the Argentine Republic ( es, link=no, República Argentina), is a country in the southern half of South America. Argentina covers an area of , making it the second-largest country in South America after Brazil, th ...
. The city is located on the western shore of the
Río de la Plata
The Río de la Plata (, "river of silver"), also called the River Plate or La Plata River in English, is the estuary formed by the confluence of the Uruguay River and the Paraná River at Punta Gorda. It empties into the Atlantic Ocean and fo ...
, on
South America's southeastern coast. "Buenos Aires" can be translated as "fair winds" or "good airs", but the former was the meaning intended by the founders in the 16th century, by the use of the original name "Real de Nuestra Señora Santa María del Buen Ayre", named after the Madonna of Bonaria in
Sardinia
Sardinia ( ; it, Sardegna, label=Italian, Corsican and Tabarchino ; sc, Sardigna , sdc, Sardhigna; french: Sardaigne; sdn, Saldigna; ca, Sardenya, label=Algherese and Catalan) is the second-largest island in the Mediterranean Sea, after ...
, Italy. Buenos Aires is classified as an
alpha global city, according to the
Globalization and World Cities Research Network
The Globalization and World Cities Research Network (GaWC) is a think tank that studies the relationships between world cities in the context of globalization. It is based in the geography department of Loughborough University in Leicestershi ...
(GaWC) 2020 ranking.
The city of Buenos Aires is neither part of
Buenos Aires Province
Buenos Aires (), officially the Buenos Aires Province (''Provincia de Buenos Aires'' ), is the largest and most populous Argentine province. It takes its name from the city of Buenos Aires, the capital of the country, which used to be part of th ...
nor the Province's capital; rather, it is an
autonomous
In developmental psychology and moral, political, and bioethical philosophy, autonomy, from , ''autonomos'', from αὐτο- ''auto-'' "self" and νόμος ''nomos'', "law", hence when combined understood to mean "one who gives oneself one's ow ...
district. In 1880, after
decades of political infighting, Buenos Aires was
federalized and removed from Buenos Aires Province. The
city limits
City limits or city boundaries refer to the defined boundary or border of a city. The area within the city limit can be called the city proper. Town limit/boundary and village limit/boundary apply to towns and villages. Similarly, corporate limi ...
were enlarged to include the towns of
Belgrano and
Flores
Flores is one of the Lesser Sunda Islands, a group of islands in the eastern half of Indonesia. Including the Komodo Islands off its west coast (but excluding the Solor Archipelago to the east of Flores), the land area is 15,530.58 km2, and th ...
; both are now
neighborhoods of the city. The
1994 constitutional amendment granted the city
autonomy
In developmental psychology and moral, political, and bioethical philosophy, autonomy, from , ''autonomos'', from αὐτο- ''auto-'' "self" and νόμος ''nomos'', "law", hence when combined understood to mean "one who gives oneself one's ...
, hence its formal name of Autonomous City of Buenos Aires. Its citizens first elected a
Chief of Government
The head of government is the highest or the second-highest official in the executive branch of a sovereign state, a federated state, or a self-governing colony, autonomous region, or other government who often presides over a cabinet, a gr ...
in 1996; previously, the Mayor was directly appointed by the
President of Argentina
The president of Argentina ( es, Presidente de Argentina), officially known as the president of the Argentine Nation ( es, Presidente de la Nación Argentina), is both head of state and head of government of Argentina. Under Constitution of Ar ...
.
The
Greater Buenos Aires
Greater Buenos Aires ( es, Gran Buenos Aires, GBA), also known as the Buenos Aires Metropolitan Area ( es, Área Metropolitana de Buenos Aires, AMBA), refers to the urban agglomeration comprising the Autonomous City of Buenos Aires and the adjac ...
conurbation, which also includes several
Buenos Aires Province
Buenos Aires (), officially the Buenos Aires Province (''Provincia de Buenos Aires'' ), is the largest and most populous Argentine province. It takes its name from the city of Buenos Aires, the capital of the country, which used to be part of th ...
districts
A district is a type of administrative division that, in some countries, is managed by the local government. Across the world, areas known as "districts" vary greatly in size, spanning regions or counties, several municipalities, subdivisions o ...
, constitutes the
fourth-most populous metropolitan area in the
Americas
The Americas, which are sometimes collectively called America, are a landmass comprising the totality of North and South America. The Americas make up most of the land in Earth's Western Hemisphere and comprise the New World.
Along with th ...
, with a population of around 15.6 million.
It is also the second largest city south of the
Tropic of Capricorn. The
quality of life in Buenos Aires was ranked 91st in the world in 2018, being one of the best in
Latin America. In 2012, it was the most visited city in South America, and the second-most visited city of Latin America.
It is known for its preserved
eclectic European
architecture and rich
cultural life.
It is a
multicultural city that is home to multiple ethnic and religious groups, contributing to its culture as well as to the dialect spoken in the city and in some other parts of the country. This is because since the 19th century, the city, and the country in general, has been a major recipient of millions of
immigrants from all over the world, making it a
melting pot
The melting pot is a monocultural metaphor for a heterogeneous society becoming more homogeneous, the different elements "melting together" with a common culture; an alternative being a homogeneous society becoming more heterogeneous throug ...
where several ethnic groups live together. Thus, Buenos Aires is considered one of the most diverse cities of
the Americas
The Americas, which are sometimes collectively called America, are a landmass comprising the totality of North America, North and South America. The Americas make up most of the land in Earth's Western Hemisphere and comprise the New World. ...
. Buenos Aires held the
1st FIBA World Championship in 1950 and
11th FIBA World Championship in 1990, the
1st Pan American Games in 1951, was the site of two venues in the
1978 FIFA World Cup
The 1978 FIFA World Cup was the 11th edition of the FIFA World Cup, a quadrennial international football world championship tournament among the men's senior national teams. It was held in Argentina between 1 and 25 June.
The Cup was won by t ...
and one in the
1982 FIVB Men's World Championship
The 1982 FIVB Men's World Championship was the tenth edition of the tournament, organised by the world's governing body, the FIVB. It was held from 1 to 15 October 1982 in Argentina.
Qualification
* India withdrew and were replaced by Iraq.
...
. Most recently, Buenos Aires had a venue in the
2001 FIFA World Youth Championship
The 2001 FIFA World Youth Championship took place in Argentina between 17 June and 8 July 2001. The 2001 championship was the 13th contested. The tournament took part in six cities, Buenos Aires, Córdoba, Mendoza, Rosario, Salta, and Mar de ...
and in the
2002 FIVB Volleyball Men's World Championship
The 2002 FIVB Volleyball Men's World Championship was the 15th edition of the event, organised by the world's governing body, the FIVB. It was held in Salta, Córdoba, Argentina, Córdoba, Mar del Plata, Buenos Aires, Santa Fé, Argentina, Santa ...
, hosted the
125th IOC Session
The 125th IOC Session took place at the Buenos Aires Hilton in Buenos Aires, Argentina, from 7 to 10 September 2013. On 7 September, the International Olympic Committee (IOC) elected Tokyo as the host city of the 2020 Summer Olympic ...
in 2013, the
2018 Summer Youth Olympics
The 2018 Summer Youth Olympics ( es, Juegos Olímpicos de la Juventud de 2018), officially known as the III Summer Youth Olympic Games, and commonly known as Buenos Aires 2018, were an international sports, cultural, and educational event held ...
and the
2018 G20 summit.
Etymology

It is recorded under the
Aragonese's archives that Catalan missionaries and Jesuits arriving in
Cagliari
Cagliari (, also , , ; sc, Casteddu ; lat, Caralis) is an Italian municipality and the capital of the island of Sardinia, an autonomous region of Italy. Cagliari's Sardinian name ''Casteddu'' means ''castle''. It has about 155,000 inhabitant ...
(
Sardinia
Sardinia ( ; it, Sardegna, label=Italian, Corsican and Tabarchino ; sc, Sardigna , sdc, Sardhigna; french: Sardaigne; sdn, Saldigna; ca, Sardenya, label=Algherese and Catalan) is the second-largest island in the Mediterranean Sea, after ...
) under the Crown of Aragon, after its capture from the
Pisa
Pisa ( , or ) is a city and ''comune'' in Tuscany, central Italy, straddling the Arno just before it empties into the Ligurian Sea. It is the capital city of the Province of Pisa. Although Pisa is known worldwide for its leaning tower, the cit ...
ns in 1324 established their headquarters on top of a hill that overlooked the city.
The hill was known to them as ''Bonaira'' (or ''Bonaria'' in
Sardinian language
Sardinian or Sard ( , or ) is a Romance languages, Romance language spoken by the Sardinians on the Western Mediterranean island of Sardinia.
Many Romance linguists consider it the language that is closest to Latin among all its genealogica ...
), as it was free of the foul smell prevalent in the old city (the castle area), which is adjacent to
swampland. During the Cagliari's siege, the Catalans built a
sanctuary to the
Virgin Mary on top of the hill. In 1335, King
Alfonso the Gentle donated the church to the
Mercedarians, who built an
abbey that stands to this day. In the years after that, a story circulated, claiming that a statue of the Virgin Mary was retrieved from the sea after it miraculously helped to calm a storm in the
Mediterranean Sea. The statue was placed in the abbey. Spanish sailors, especially
Andalusians, venerated this image and frequently invoked the "Fair Winds" to aid them in their
navigation and prevent
shipwreck
A shipwreck is the wreckage of a ship that is located either beached on land or sunken to the bottom of a body of water. Shipwrecking may be intentional or unintentional. Angela Croome reported in January 1999 that there were approximately ...
s. A sanctuary to the Virgin of Buen Ayre would be later erected in
Seville.
In the first foundation of Buenos Aires, Spanish sailors arrived thankfully in the
Río de la Plata
The Río de la Plata (, "river of silver"), also called the River Plate or La Plata River in English, is the estuary formed by the confluence of the Uruguay River and the Paraná River at Punta Gorda. It empties into the Atlantic Ocean and fo ...
by the blessings of the "Santa Maria de los Buenos Aires", the "Holy Virgin Mary of the Good Winds" who was said to have given them the good winds to reach the coast of what is today the modern city of Buenos Aires.
Pedro de Mendoza called the city "Holy Mary of the Fair Winds", a name suggested by the chaplain of Mendoza's expedition – a devotee of the Virgin of Buen Ayre – after the ''Madonna'' of Bonaria from
Sardinia
Sardinia ( ; it, Sardegna, label=Italian, Corsican and Tabarchino ; sc, Sardigna , sdc, Sardhigna; french: Sardaigne; sdn, Saldigna; ca, Sardenya, label=Algherese and Catalan) is the second-largest island in the Mediterranean Sea, after ...
(which is still to this day the patroness of the
Mediterranean island). Mendoza's settlement soon came under attack by indigenous people, and was abandoned in 1541.
For many years, the name was attributed to a Sancho del Campo, who is said to have exclaimed: ''How fair are the winds of this land!'', as he arrived. But in 1882, after conducting extensive research in Spanish archives, Argentine merchant
Eduardo Madero
Eduardo Madero (1823 — 1894) was an Argentine merchant, banker and developer.
Life and times
Eduardo Madero was born in Buenos Aires, in 1823, to a family of farmers. A nephew of publisher Florencio Varela, his uncle's enmity with the Governor ...
ultimately concluded that the name was indeed closely linked with the devotion of the sailors to Our Lady of Buen Ayre. A second (and permanent) settlement was established in 1580 by
Juan de Garay, who sailed down the
Paraná River
The Paraná River ( es, Río Paraná, links=no , pt, Rio Paraná, gn, Ysyry Parana) is a river in south-central South America, running through Brazil, Paraguay, and Argentina for some ."Parana River". Encyclopædia Britannica. Encyclopædia Br ...
from
Asunción (now the capital of Paraguay). Garay preserved the name originally chosen by Mendoza, calling the city ''Ciudad de la Santísima Trinidad y Puerto de Santa María del Buen Aire'' ("City of the Most Holy Trinity and Port of Saint Mary of the Fair Winds"). The short form that eventually became the city's name, "Buenos Aires", became commonly used during the 17th century.
The usual abbreviation for Buenos Aires in Spanish is Bs.As. It is common as well to refer to it as "B.A." or "BA". When referring specifically to the autonomous city, it is very common to colloquially call it "Capital" in Spanish. Since the autonomy obtained in 1994, it has been called "CABA" (per ''Ciudad Autónoma de Buenos Aires'', Autonomous City of Buenos Aires).
History
Colonial times

In 1516, navigator and explorer
Juan Díaz de Solís, navigating in the name of Spain, was the first European to reach the
Río de la Plata
The Río de la Plata (, "river of silver"), also called the River Plate or La Plata River in English, is the estuary formed by the confluence of the Uruguay River and the Paraná River at Punta Gorda. It empties into the Atlantic Ocean and fo ...
. His expedition was cut short when he was killed during an attack by the native
Charrúa tribe in what is now
Uruguay. The city of Buenos Aires was first established as ''Ciudad de Nuestra Señora Santa María del Buen Ayre''
(literally "City of Our Lady Saint Mary of the Fair Winds") after
Our Lady of Bonaria (Patroness Saint of
Sardinia
Sardinia ( ; it, Sardegna, label=Italian, Corsican and Tabarchino ; sc, Sardigna , sdc, Sardhigna; french: Sardaigne; sdn, Saldigna; ca, Sardenya, label=Algherese and Catalan) is the second-largest island in the Mediterranean Sea, after ...
) on 2 February 1536 by a Spanish expedition led by
Pedro de Mendoza. The settlement founded by Mendoza was located in what is today the
San Telmo district of Buenos Aires, south of the
city center.
More attacks by the indigenous people forced the settlers away, and in 1542, the site was thusly abandoned. A second (and permanent) settlement was established on 11 June 1580 by
Juan de Garay, who arrived by sailing down the
Paraná River
The Paraná River ( es, Río Paraná, links=no , pt, Rio Paraná, gn, Ysyry Parana) is a river in south-central South America, running through Brazil, Paraguay, and Argentina for some ."Parana River". Encyclopædia Britannica. Encyclopædia Br ...
from
Asunción (now the capital of Paraguay). He dubbed the settlement "Santísima Trinidad" and its port became "Puerto de Santa María de los Buenos Aires."
From its earliest days, Buenos Aires depended primarily on trade. During most of the 17th century, Spanish ships were menaced by pirates, so they developed a complex system where ships with military protection were dispatched to Central America in a convoy from Seville (the only port allowed to trade with the colonies) to
Lima, Peru
Lima ( ; ), originally founded as Ciudad de Los Reyes (City of The Kings) is the capital and the largest city of Peru. It is located in the valleys of the Chillón River, Chillón, Rímac River, Rímac and Lurín Rivers, in the desert zone of t ...
, and from it to the inner cities of the viceroyalty. Because of this, products took a very long time to arrive in Buenos Aires, and the taxes generated by the transport made them prohibitive. This scheme frustrated the traders of Buenos Aires, and a thriving informal yet accepted by the authorities contraband industry developed inside the colonies and with the Portuguese. This also instilled a deep resentment among ''
porteños'' towards the Spanish authorities.
Sensing these feelings,
Charles III of Spain
it, Carlo Sebastiano di Borbone e Farnese
, house = Bourbon-Anjou
, father = Philip V of Spain
, mother = Elisabeth Farnese
, birth_date = 20 January 1716
, birth_place = Royal Alcazar of Madrid, Spain
, death_d ...
progressively eased the trade restrictions before finally declaring Buenos Aires an open port in the late 18th century. The capture of
Portobelo in Panama by British forces also fueled the need to foster commerce via the Atlantic route, to the detriment of Lima-based trade. One of his rulings was to split a region from the Viceroyalty of Perú and create instead the
Viceroyalty of the Río de la Plata, with Buenos Aires as the capital. However, Charles's placating actions did not have the desired effect, and the ''porteños'', some of them versed in the ideology of the
French Revolution, instead became even more convinced of the need for independence from Spain.
War of Independence
During the
British invasions of the Río de la Plata, British forces attacked Buenos Aires twice. In 1806 the British successfully invaded Buenos Aires, but an army from
Montevideo
Montevideo () is the Capital city, capital and List of cities in Uruguay, largest city of Uruguay. According to the 2011 census, the city proper has a population of 1,319,108 (about one-third of the country's total population) in an area of . M ...
led by
Santiago de Liniers defeated them. In the brief period of British rule, the viceroy
Rafael Sobremonte
Don Rafael de Sobremonte y Núñez del Castillo, 3rd Marquis of Sobremonte (Seville, 1745 – Cádiz, 1827), third Marquis of Sobremonte, was an aristocrat, military man and Spanish colonial administrator, and Viceroy of the Río de la Pla ...
managed to escape to
Córdoba and designated this city as capital. Buenos Aires became the capital again after its recapture by Argentine forces, but Sobremonte could not resume his duties as viceroy. Santiago de Liniers, chosen as new viceroy, prepared the city against a possible new British attack and repelled a second invasion by Britain in 1807. The militarization generated in society changed the balance of power favorably for the
criollos (in contrast to
peninsulars), as well as the development of the
Peninsular War in Spain.
An attempt by the peninsular merchant
Martín de Álzaga to remove Liniers and replace him with a
Junta
Junta may refer to:
Government and military
* Junta (governing body) (from Spanish), the name of various historical and current governments and governing institutions, including civil ones
** Military junta, one form of junta, government led by ...
was defeated by the criollo armies. However, by 1810 it would be those same armies who would support a new revolutionary attempt, successfully removing the new viceroy
Baltasar Hidalgo de Cisneros
Baltasar Hidalgo de Cisneros y de la Torre (6 January 1756 – 9 June 1829) was a Spanish naval officer born in Cartagena. He took part in the Battle of Cape St Vincent and the Battle of Trafalgar, and in the Spanish resistance against Napole ...
. This is known as the
May Revolution, which is now celebrated as a national holiday. This event started the
Argentine War of Independence
The Argentine War of Independence ( es, Guerra de Independencia de Argentina, links=no) was a secessionist civil war fought from 1810 to 1818 by Argentine patriotic forces under Manuel Belgrano, Juan José Castelli and José de San Martín a ...
, and many armies left Buenos Aires to fight the diverse strongholds of royalist resistance, with varying levels of success. The government was held first by two Juntas of many members, then by two
triumvirates, and finally by a unipersonal office, the
Supreme Director. Formal independence from Spain was
declared
In the sport of cricket, a declaration occurs when a captain declares his team's innings closed and a forfeiture occurs when a captain chooses to forfeit an innings without batting. Declaration and forfeiture are covered in Law 15 of the ''Laws of ...
in 1816, at the
Congress of Tucumán. Buenos Aires managed to endure the whole
Spanish American wars of independence without falling again under royalist rule.
Historically, Buenos Aires has been Argentina's main venue of
liberal,
free-trading
Free trade is a trade policy that does not restrict imports or exports. It can also be understood as the free market idea applied to international trade. In government, free trade is predominantly advocated by political parties that hold econo ...
, and foreign ideas. In contrast, many of the provinces, especially those to the city's northwest, advocated a more
nationalistic and
Catholic approach to political and social issues. In fact, much of the internal tension in Argentina's history, starting with the centralist-federalist conflicts of the 19th century, can be traced back to these contrasting views. In the months immediately following said "May Revolution", Buenos Aires sent a number of military envoys to the provinces with the intention of obtaining their approval. Instead, the enterprise fueled tensions between the capital and the provinces; many of these missions ended in violent clashes.
In the 19th century the city was
blockaded twice by naval forces: by the
French
French (french: français(e), link=no) may refer to:
* Something of, from, or related to France
** French language, which originated in France, and its various dialects and accents
** French people, a nation and ethnic group identified with Franc ...
from 1838 to 1840, and later by an
Anglo-French expedition from 1845 to 1848. Both blockades failed to bring the Argentine government to the negotiating table, and the foreign powers eventually desisted from their demands.
19th and 20th century

During most of the 19th century, the political status of the city remained a sensitive subject. It was already the capital of
Buenos Aires Province
Buenos Aires (), officially the Buenos Aires Province (''Provincia de Buenos Aires'' ), is the largest and most populous Argentine province. It takes its name from the city of Buenos Aires, the capital of the country, which used to be part of th ...
, and between 1853 and 1860 it was the capital of the seceded
State of Buenos Aires. The issue was fought out more than once on the battlefield, until the matter was finally settled in 1880 when the city was
federalized and became the seat of government, with its mayor appointed by the president. The
Casa Rosada became the seat of the
president.
Health conditions in poor areas were appalling, with high rates of tuberculosis. Contemporaneous public health physicians and politicians typically blamed both the poor themselves and their ramshackle tenement houses (conventillos) for the spread of the dreaded disease. People ignored public-health campaigns to limit the spread of contagious diseases, such as the prohibition of spitting on the streets, the strict guidelines to care for infants and young children, and quarantines that separated families from ill loved ones.
In addition to the wealth generated by
customs duties
A tariff is a tax imposed by the government of a country or by a supranational union on imports or exports of goods. Besides being a source of revenue for the government, import duties can also be a form of regulation of foreign trade and poli ...
and Argentine foreign trade in general, as well as the existence of fertile
pampas,
railroad development in the second half of the 19th century increased the economic power of Buenos Aires as raw materials flowed into its factories. A leading destination for immigrants from Europe, particularly Italy and Spain, from 1880 to 1930, Buenos Aires became a multicultural city that ranked itself alongside the major European capitals. During this time, the
Colón Theater became one of the world's top opera venues, and the city became the regional capital of
radio,
television,
cinema, and
theater. The city's main avenues were built during those years, and the dawn of the 20th century saw the construction of South America's tallest buildings and its first
underground system. A second construction boom, from 1945 to 1980, reshaped downtown and much of the city.

Buenos Aires also attracted migrants from Argentina's provinces and neighboring countries.
Shanty towns (''
villas miseria'') started growing around the city's industrial areas during the 1930s, leading to pervasive social problems and social contr