Brazilian Portuguese the last decades of the 20th century, due to the popularity of Brazilian music and Brazilian soap operas. Since Brazil joined Mercosul, the South American free trade zone, Portuguese has been increasingly studied as a foreign language in Spanish-speaking partner countries. Many words of Brazilian origin (also used in other Portuguese-speaking countries) have also entered into English: samba, bossa nova, cruzeiro, milreis and capoeira. While originally Angolan, the word "samba" only became famous worldwide because of its popularity in Brazil. After independence in 1822, Brazilian idioms with African and Amerindian influences were brought to Portugal by returning Portuguese Brazilians ("luso-brasileiros"
Brazilian Portuguese what to do"). The use of redundant pronouns for means of topicalization is considered grammatically incorrect, because the topicalized noun phrase, according to traditional European analysis, has no syntactic function. This kind of construction, however, is often used in European Portuguese. Brazilian grammars traditionally treat this structure similarly, rarely mentioning such a thing as "topic". Nevertheless, the so-called anacoluthon has taken on a new dimension in Brazilian Portuguese. The poet Carlos Drummond de Andrade once wrote a short "metapoema" (a "metapoem", i. e., a poem about poetry, a specialty for which he was renowned) treating the concept of "anacoluto": In