Portuguese is a Western Romance language of the Indo-European language family originating from the Iberian Peninsula of Europe. It is the official language of Portugal, Brazil, Cape Verde, Angola, Mozambique, Guinea-Bissau and São Tomé and Príncipe, and has co-official language status in East Timor, Equatorial Guinea, and Macau. Portuguese-speaking people or nations are known as "Lusophones". As the result of expansion during colonial times, a cultural presence of Portuguese speakers is also found around the world. Portuguese is part of the Ibero-Romance group that evolved from several dialects of Vulgar Latin in the medieval Kingdom of Galicia and the County of Portugal, and has kept some Celtic phonology.
Sign in Japanese, Portuguese, and English in Oizumi, Japan, which has a large lusophone community due to return immigration of Japanese Brazilians.
Multilingual signage in Chinese, Portuguese and English at the Hong Kong–Zhuhai–Macau Bridge port building in Macau. Portuguese is a co-official language in Macau.
Statue of the Portuguese Poet Luís de Camões at the entrance of the Real Gabinete Português de Leitura in Rio de Janeiro.
Museum of the Portuguese Language in São Paulo.
The Indo-European languages are a language family native to the overwhelming majority of Europe, the Iranian plateau, and the northern Indian subcontinent. Some European languages of this family—English, French, Portuguese, Russian, Dutch, and Spanish—have expanded through colonialism in the modern period and are now spoken across several continents. The Indo-European family is divided into several branches or sub-families, of which there are eight groups with languages still alive today: Albanian, Armenian, Balto-Slavic, Celtic, Germanic, Hellenic, Indo-Iranian, and Italic; another nine subdivisions are now extinct.
Franz Bopp was a pioneer in the field of comparative linguistic studies.
Indo-European language family tree based on "Ancestry-constrained phylogenetic analysis of Indo-European languages" by Chang et al.
Scheme of Indo-European language dispersals from c. 4000 to 1000 BCE according to the widely held Kurgan hypothesis. – Center: Steppe cultures 1 (black): Anatolian languages (archaic PIE) 2 (black): Afanasievo culture (early PIE) 3 (black) Yamnaya culture expansion (Pontic-Caspian steppe, Danube Valley) (late PIE) 4A (black): Western Corded Ware 4B-C (blue & dark blue): Bell Beaker; adopted by Indo-European speakers 5A-B (red): Eastern Corded ware
