The Brazilian real (pl. reais; sign: R$; code: BRL) is the official currency of Brazil. It is subdivided into 100 centavos. The Central Bank of Brazil is the central bank and the issuing authority. The real replaced the cruzeiro real in 1994.
As of April 2019, the real was the twentieth most traded currency.
The dollar sign, also known as the peso sign, is a currency symbol consisting of a capital ⟨S⟩ crossed with one or two vertical strokes ($ or 
depending on typeface), used to indicate the unit of various currencies around the world, including most currencies denominated "dollar" or "peso". The explicitly double-barred sign is called cifrão in the Portuguese language.
The sign is also used in several compound currency symbols, such as the Brazilian real (R$) and the United States dollar (US$): in local use, the nationality prefix is usually omitted. In countries that have other currency symbols, the US dollar is often assumed and the "US" prefix omitted.
Bi-metallic coins are coins consisting of two (bi-) metals or alloys, generally arranged with an outer ring around a contrasting center. The bi-metal form is typically used to protect against counterfeiting.
Common circulating examples include the European €1 and €2, United Kingdom £1 and £2, Canadian $2, South Africa R5, Egyptian £1, Turkish 1 lira and 50 kurus, Indian ₹10 and ₹20, Indonesian Rp1,000, Polish 2 and 5 zł, Czech 50 Kč, Hungarian 100 and 200 Ft, Bulgarian 1 and 2 lv., Hong Kong $10, Argentine $1 and $2, Brazilian R$1, Chilean $100 and $500, Colombian $500 and $1000, Peruvian S/2 and S/5, Albanian 100 Lekë, Thai 10 baht and all Mexican coins of $1 or higher denomination. For a more complete list, see List of bi-metallic coins.
The Museum of the Portuguese Language (Portuguese: Museu da Língua Portuguesa, [muˈzew dɐ ˈlĩɡwɐ poʁtuˈɡezɐ]) is an interactive Portuguese language—and Linguistics/Language Development in general—museum in São Paulo, Brazil. It is housed in the Estação da Luz railway station, in the urban district of the same name. Three hundred thousand passengers arrive and leave the station every day, and the choice of the building for the launching of the museum is connected to the fact that it was mainly here that thousands of non-Portuguese speaking immigrants arriving from Europe and Asia into São Paulo via the Port of Santos got acquainted with the language for the first time. The idea of a museum-monument to the language was conceived by the São Paulo Secretary of Culture in conjunction with the Roberto Marinho Foundation, at a cost of around 37 million reais.
The objective of the museum is to create a living representation of the Portuguese language, where visitors may be surprised and educated by unusual and unfamiliar aspects of their own native language. Secondly, the caretakers of the museum, as expressed on the official website, "desire that, in this museum, the public has access to new knowledge and reflection in an intense and pleasurable manner," as it notices the relationship of the language with others, as well as its proto-languages. The museum targets the Portuguese speaking population, made up of peoples from many regions and social backgrounds, but who still have not had the opportunity to gain a broader understanding of the origins, the history and the continuous evolution of the language.
In the year 1999, Brazil produced a gross domestic product (GDP) of R$44,403,000 million or US$2,223,737 million in nominal terms, ranking 7th worldwide, and Int$2,896,461 million in Purchasing Power Parity (PPP) terms, ranking 7th worldwide, according to the Brazilian Institute of Geography and Statistics (IBGE) and the International Monetary Fund (IMF). In that year, the Brazilian economy grew 1.0% in real terms according to revised figures of the IBGE. The per capita accounts of the GDP were R$22,813.47 or US$11.521,95 in nominal terms, and Int$14,537.40 in PPP terms. The Brazilian population, in 2012, was 193,300,291, ranking 5th worldwide and totaling 2.84% of the world's population.
Brazil is formed by the union of 27 federative units—26 states and the Federal District, which contains the capital city, Brasília. Of these, seven states; São Paulo, Rio de Janeiro, Minas Gerais, Rio Grande do Sul, Paraná, Bahia and Santa Catarina; with the Federal District, constitute almost 80% of the national economy. São Paulo is the richest and most populous state in Brazil, ranking 16th and 27th worldwide, respectively; Rio de Janeiro is the second richest and the third most populous state, ranking 65th and 59th worldwide; Minas Gerais is the third richest and the second most populous state, ranking 80th and 55th worldwide. Piauí has the lowest GRP per capita at the same time that the Federal District has the highest. Amapá, Acre and Roraima are the poorest states in the country with 0.59% of the national GDP.
A commodity currency is a currency that co-moves with the world prices of primary commodity products, due to these countries' heavy dependency on the export of certain raw materials for income. Commodity currencies are most prevalent in developing countries (eg. Burundi, Tanzania, Papua New Guinea). In the foreign exchange market, commodity currencies generally refer to the New Zealand dollar, Norwegian krone, South African rand, Brazilian real, Russian ruble and the Chilean peso. Commodity currencies' nature can allow foreign exchange traders to more accurately gauge a currency's value, and predict movements within markets based on the perceived value of the correlated commodity.