Rio de Janeiro, also known simply as Rio, is the capital and largest city of the state of Rio de Janeiro. It is the second-largest city in Brazil after São Paulo, and the largest by number of international tourists. It has a population of 6 million in the city proper, and 13 million in its metropolitan area as of 2025. It is also the sixth-most-populous city in the Americas.
Founded in 1565, the city was initially the seat of the Captaincy of Rio de Janeiro, a domain of the Portuguese Empire. In 1763, it became the capital of the State of Brazil. In 1808, when the Portuguese Royal Court moved to Brazil, Rio de Janeiro became the seat of the court of Queen Maria I of Portugal. Under the leadership of her son, Prince Regent John of Braganza, Maria raised Brazil to the dignity of a kingdom within the United Kingdom of Portugal, Brazil, and Algarves. Rio remained as the capital of the pluricontinental monarchy until 1822, when the Brazilian War of Independence began. This is the only instance in modern history that the capital of a colonizing country officially shifted to a city in one of its colonies. Rio de Janeiro subsequently served as the capital of the Empire of Brazil until 1889, and then the capital of republican Brazil until 1960, when the capital was moved to Brasília.
Rio de Janeiro has the second largest municipal GDP in the country, and 30th-largest in the world as of 2008, estimated at R$343 billion. It is home to the headquarters of major Brazilian oil, mining, and telecommunications companies, including two of the country's largest corporations, Petrobras and Vale, and Latin America's largest telemedia conglomerate, Grupo Globo. The home of many universities and institutes, it is the second-largest center of research and development in Brazil, accounting for 17 percent of national scientific output according to 2005 data. Despite the perception of a high crime rate, the city actually has a lower incidence of crime than most state capitals in Brazil.
Rio de Janeiro is one of the most visited cities in the Southern Hemisphere and is known for its natural settings, carnival, samba, bossa nova, and beaches such as Barra da Tijuca, Copacabana, Ipanema, and Leblon. In addition to the beaches, other landmarks include the statue of Christ the Redeemer atop Corcovado mountain, named one of the New Seven Wonders of the World; Sugarloaf Mountain with its cable car; the Sambódromo, a permanent grandstand-lined parade avenue which is used during Carnival; and Maracanã Stadium, one of the world's largest football stadiums. Rio de Janeiro was the host of the 2016 Summer Olympics and Paralympics, making the city the first South American and Portuguese-speaking city to host these events, and the third time that the Olympics were held in a Southern Hemisphere city. The Maracanã Stadium held the finals of the 1950 and 2014 FIFA World Cups and the 2013 FIFA Confederations Cup. The city also hosted the XV Pan American Games in 2007, and the G20 summit in 2024, and will host the FIFA Women's World Cup in 2027.
History
Pre-Cabraline period
The region of Rio was inhabited by the Tupi, Puri, Botocudo and Maxakalí peoples.
Colonial period
Europeans first encountered Guanabara Bay on 1 January 1502 (hence Rio de Janeiro, "January River"), during a Portuguese expedition under explorer Gaspar de Lemos, captain of a ship in Pedro Álvares Cabral's fleet, or under Gonçalo Coelho. Allegedly the Florentine explorer Amerigo Vespucci participated as an observer at the invitation of King Manuel I in the same expedition.
In 1555, one of the islands of Guanabara Bay, now called Villegagnon Island, was occupied by 500 French colonists under the French admiral Nicolas Durand de Villegaignon. Consequently, Villegagnon built Fort Coligny on the island when attempting to establish the France Antarctique colony. Eventually, this French settlement became too much of a threat to the established Portuguese colony, and in 1560 the order was made to get rid of them. A years-long military aggression was then initiated by the new Governor General of Brazil Mem de Sá, and later continued by his nephew Estácio de Sá. On 20 January 1567, a final defeat was imposed on the French forces, and they were decisively expelled from Brazil for good.
The city of Rio de Janeiro proper was founded on 1 March 1565 by the Portuguese, led by Estácio de Sá, including Antônio de Mariz. It was named São Sebastião do Rio de Janeiro, in honor of St. Sebastian, the saint who was the namesake and patron of the Portuguese then-monarch Sebastião. Rio de Janeiro was the name of Guanabara Bay. Until early in the 18th century, the city was threatened or invaded by several mostly French pirates and buccaneers, such as Jean-François Duclerc and René Duguay-Trouin.
In the late 17th century, Bandeirantes discovered gold and diamonds in the neighboring captaincy of Minas Gerais, thus Rio de Janeiro became a much more practical port for exporting diversified sources of wealth (gold, precious stones, besides sugar) than Salvador, Bahia, much farther northeast. On 27 January 1763, the colonial administration in Portuguese America was moved from Salvador to Rio de Janeiro. The city remained primarily a colonial capital until 1808, when the Portuguese royal family and most of the associated Lisbon nobles, fleeing from Napoleon's invasion of Portugal, moved to Rio de Janeiro.
Portuguese royal period
The kingdom's capital was transferred to the city, which, thus, became the only European capital outside of Europe. As there was no physical space or urban structure to accommodate hundreds of noblemen who arrived suddenly, many inhabitants were evicted from their homes. In the first decade, several educational establishments were created, such as the Military Academy, the Royal School of Sciences, Arts and Crafts and the Imperial Academy of Fine Arts, as well as the National Library of Brazil – with the largest collection in Latin America – and The Botanical Garden. The first printed newspaper in Brazil, the Gazeta do Rio de Janeiro, came into circulation during this period. When Brazil was elevated to Kingdom in 1815, it became the capital of the United Kingdom of Portugal, Brazil and the Algarves until the return of the Portuguese Royal Family to Lisbon in 1821, but remained as capital of the Kingdom of Brazil.
From the colonial period until the first independent era, Rio de Janeiro was a city of enslaved people. There was a large influx of African slaves to Rio de Janeiro: in 1819, there were 145,000 slaves in the captaincy. In 1840, the number of enslaved people reached 220,000. Between 1811 and 1831, 500,000 to a million enslaved people arrived in Rio de Janeiro through Valongo Wharf, which is now a World Heritage Site. The Port of Rio de Janeiro was the largest enslaved people port in America.
Imperial period
When Prince Pedro proclaimed the independence of Brazil in 1822, he decided to keep Rio de Janeiro as the capital of his new empire while the place was enriched with sugar cane agriculture in the Campos region and, especially, with the new coffee cultivation in the Paraíba Valley. In order to separate the province from the capital of the Empire, the city was converted in Neutral Municipality in 1834, passing the province of Rio de Janeiro to have Niterói as capital.
As a political center of the country, Rio concentrated the political-partisan life of the Empire. It was the main stage of the abolitionist and republican movements in the last half of the 19th century. At that time, the number of enslaved people was drastically reduced, and the city was developed, with modern drains, animal trams, train stations crossing the city, gas and electric lighting, telephone and telegraph wiring, water and river plumbing. Rio continued as the capital of Brazil after 1889, when the monarchy was replaced by a republic.
On 6 February 1889, the Bangu Textile Factory was founded, with the name of Industrial Progress Company of Brazil (Companhia Progresso Industrial do Brasil). The factory was officially opened on 8 March 1893, in a complex with varying architectural styles like Italianate, Neo-Gothic and a tower in Mansard Roof style. After the opening in 1893, workers from Great Britain arrived in Bangu to work in the textile factory. The old farms became worker villages with red-brick houses, and a neo-Gothic church was created, which still exists as the Saint Sebastian and Saint Cecilia Parish Church. Street cinemas and cultural buildings also appeared. In May 1894, Thomas Donohoe, a British worker from Busby, Scotland, arrived in Bangu.
Donohoe was amazed to discover that there was absolutely no knowledge of football among Brazilians. So he wrote to his wife, Elizabeth, asking her to bring a football when she joined him. And shortly after her arrival, in September 1894, the first football match in Brazil took place in the field beside the textile factory. It was a five-a-side match between British workers, and took place six months before the first game organized by Charles Miller in São Paulo. However, the Bangu Football Club was not formally created until 1904.
Republican period
At the time Brazil's Old Republic was established, the city lacked urban planning and sanitation, which helped spread several diseases, such as yellow fever, dysentery, variola, tuberculosis and even black death. Pereira Passos, who was named mayor in 1902, imposed reforms to modernize the city, demolishing the cortiços where most of the poor population lived. These people then moved to live in the city's hills, creating the first favelas. Inspired by the city of Paris, Passos built the Municipal Theater, the National Museum of Fine Arts and the National Library in the city's center; brought electric power to Rio and created larger avenues to adapt the city to automobiles. Passos also named Oswaldo Cruz as Director General of Public Health. Cruz's plans to clean the city of diseases included compulsory vaccination of the entire population and forced entry into houses to kill mosquitoes and rats. The people of the city rebelled against Cruz's policy, in what would be known as the Vaccine Revolt.
In 1910, Rio saw the Revolt of the Lash, where Afro-Brazilian crew members in the Brazilian Navy mutinied against the heavy use of corporal punishment, which was similar to the punishment enslaved people received. The mutineers took control of the battleship Minas Geraes and threatened to fire on the city. Another military revolt occurred in 1922, the Copacabana Fort revolt, a march against the Old Republic's coronelism and café com leite politics. This revolt marked the beginning of Tenentism, a movement which resulted in the Revolution of 1930 that started the Vargas Era.
Until the early years of the 20th century, the city was largely limited to the neighborhood now known as the historic city center (see below), on the mouth of Guanabara Bay. The city's center of gravity began to shift south and west to the so-called Zona Sul (South Zone) in the early part of the 20th century, when the first tunnel was built under the mountains between Botafogo and the neighborhood that is now known as Copacabana. Expansion of the city to the north and south was facilitated by the consolidation and electrification of Rio's streetcar transit system after 1905. Botafogos natural environment, combined with the fame of the Copacabana Palace Hotel, the luxury hotel of the Americas in the 1930s, helped Rio to gain the reputation it still holds today as a beach party town. This reputation has been somewhat tarnished in recent years by favela violence resulting from the narcotics trade and militias.
Plans for moving the nation's capital city from Rio de Janeiro to the center of Brazil had been occasionally discussed, and when Juscelino Kubitschek was elected president in 1955, it was partially on the strength of promises to build a new capital. Though many thought that it was just campaign rhetoric, Kubitschek managed to have Brasília and a new Federal District built, at great cost, by 1960. On 21 April of that year, the capital of Brazil was officially moved to Brasília. The territory of the former Federal District became its own state, Guanabara, after the bay that borders it to the east, encompassing just the city of Rio de Janeiro. After the 1964 coup d'état that installed a military dictatorship, the city-state was the only state left in Brazil to oppose the military. Then, in 1975, a presidential decree known as "The Fusion" removed the city's federative status and merged it with the State of Rio de Janeiro, with the city of Rio de Janeiro replacing Niterói as the state's capital, and establishing the Rio de Janeiro Metropolitan Region.
In 1992, Rio hosted the Earth Summit, a United Nations conference to fight environmental degradation. Twenty years later, in 2012, the city hosted another conference on sustainable development, named United Nations Conference on Sustainable Development. The city hosted the World Youth Day in 2013, the second World Youth Day in South America and first in Brazil. In the sports field, Rio de Janeiro was the host of the 2007 Pan American Games and the 2014 FIFA World Cup. On 2 October 2009, the International Olympic Committee announced that Rio de Janeiro would host the 2016 Olympic Games and the 2016 Paralympic Games, beating competitors Chicago, Tokyo, and Madrid. The city became the first South American city to host the event and the second Latin American city (after Mexico City in 1968) to host the Games. Since the early 2010s, Rio de Janeiro has been inscribed as a UNESCO World Heritage Site for its arts, urban culture and designed landscapes set around a natural environment.
Geography
Rio de Janeiro is near the west end of a strip (from Cabo Frio to just east of Ilha Grande) of Brazil's Atlantic coast close to the Tropic of Capricorn where the shoreline is oriented east and west; the city thus faces largely south. It was founded at the entrance to an inlet, Guanabara Bay (Baía de Guanabara), which is marked by a point of land called Sugar Loaf (Pão de Açúcar) – a "calling card" of the city.
The population of the city of Rio de Janeiro, occupying an area of 1,182.3 km2 (456.5 sq mi), is about 6,000,000. The population of the greater metropolitan area is estimated at 11–13.5 million. Residents of the city are known as cariocas. The official song of Rio is "Cidade Maravilhosa", by composer André Filho.
Parks
The city has parks and ecological reserves such as the Tijuca National Park, the world's first urban forest and UNESCO Environmental Heritage and Biosphere Reserve; Pedra Branca State Park, which houses the highest point of Rio de Janeiro, the peak of Pedra Branca; the Quinta da Boa Vista complex; the Botanical Garden; Rio's Zoo; Parque Lage; and the Passeio Público, the first public park in the Americas. In addition the Flamengo Park is the largest landfill in the city, extending from the center to the south zone, and containing museums and monuments, in addition to much vegetation.