Lisbon (Lisboa) is the capital and largest city of Portugal. It is considered an alpha global city and is the seat of the district of Lisbon and the main city of the Lisbon region. Its municipality, which matches the city proper excluding the larger continuous conurbation, has a municipal population of 564,477 in 84.8 km2 (33 sq mi), while the Lisbon Metropolitan Area in total has around 2.8 million inhabitants, and 3.34 million people live in the broader agglomeration of Lisbon Metropolitan Region (includes cities ranging from Leiria to Setúbal).[2] Due to its economic output, standard of living, and market size, the Grande Lisboa (Greater Lisbon) subregion is considered the second most important financial and economic centre in the Iberian Peninsula.[3] The Lisbon region is the wealthiest region in Portugal and it is well above the European Union's GDP per capita average – it produces 37% of the Portuguese GDP. It is also the political centre of the country, as seat of government and residence of the Head of State. The city was under Roman rule from 205 BC, when it was already a 1000 year old town. Julius Caesar made it a municipium called Felicitas Julia, adding to the name Olissipo. Ruled by a series of Germanic tribes from the 5th century, it was captured by Moors in the 8th century. In 1147, the Crusaders under Afonso Henriques reconquered the city for the Christians and since then it has been a major political, economic and cultural center of Portugal. Unlike most capital cities, Lisbon's status as the capital of Portugal has never been granted or confirmed officially – by statute or in written form. Its position as the capital has formed through constitutional convention, making its position as de facto capital a part of the Constitution of Portugal. Lisbon hosts two agencies of the European Union, namely, the European Monitoring Centre for Drugs and Drug Addiction (EMCDDA) and the European Maritime Safety Agency (EMSA). The Community of Portuguese Language Countries (CPLP), is also headquartered in Lisbon.

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Alentejo is a south-central region of Portugal. Its name's origin, "Além-Tejo", literally translates to "Beyond the Tagus" or "Across the Tagus". The region is separated from the rest of Portugal by the Tagus river, and extends to the south where it borders the Algarve. Alentejo is a region known for its polyphonic singing groups, comparable to those found on Sardinia and Corsica. Its main cities are Évora (region's capital), Santarém (formerly belonging to Ribatejo region), Portalegre, Beja, and Sines. Being a traditional region, it is also one of the more recent seven Regions of Portugal (NUTS II subdivisions). Today Lezíria do Tejo subregion, formerly belonging to Lisboa e Vale do Tejo region, is part of Alentejo NUTS II region.

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Portuguese is a Romance language that originated in what is now Galicia and northern Portugal. It is derived from the Latin spoken by the romanized pre-Roman peoples of the Iberian Peninsula (namely the Gallaeci, the Lusitanians, the Celtici and the Conii) around 2000 years ago. It spread worldwide in the 15th and 16th centuries as Portugal established a colonial and commercial empire (1415–1999) which spanned from Brazil in the Americas to Goa and other parts of India, Macau in China and Timor (north of Australia). It was used as the exclusive lingua franca on the island of Sri Lanka for almost 350 years. During that time, many creole languages based on Portuguese also appeared around the world, especially in Africa, Asia, and the Caribbean. Today it is one of the world's major languages, ranked seventh according to number of native speakers (between 205 and 230 million). It is the language of about half of South America's population, even though Brazil is the only Portuguese-speaking nation in the Americas. It is also a major lingua franca in Portugal's former colonial possessions in Africa. It is an official language in nine countries (see the table on the right), also being co-official with Cantonese Chinese in Macau and Tetum in East Timor. There are sizeable communities of Portuguese speakers in various regions of North America, notably in the United States (New Jersey, New England, California and south Florida) and in Ontario, Canada. In various aspects, the system of sounds in Portuguese is more similar to the phonologies of Catalan or French than, say, those of Spanish or Italian. Spanish author Miguel de Cervantes once called Portuguese "the sweet language", Lope de Vega referred to it as "suave" [7] while Brazilian writer Olavo Bilac poetically described it as a última flor do Lácio, inculta e bela: "the last flower of Latium, wild and beautiful". Portuguese is also termed "the language of Camões", after one of Portugal's best known literary figures, Luís Vaz de Camães.

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