Lusophone Lusophone Lusophones () are people who speak the Portuguese language, either as native speakers or as learners. Similarly, the Lusosphere or Lusophony () is a community of people who are culturally and linguistically linked to Portugal, either historically or by choice. The idea of a Lusosphere is free of ethnic connotations, in that a Lusophone may not have any Portuguese ancestry at all. The Lusophone world is mainly a legacy of the Portuguese Empire, although Portuguese diaspora and Brazilian diaspora communities have also played a role in spreading the Portuguese language. Even after the collapse of the empire, the corresponding
Proto-Indo-European language Proto-Indo-European language Proto-Indo-European (PIE) is the linguistic reconstruction of the common ancestor of the Indo-European languages, the most widely spoken language family in the world. Far more work has gone into reconstructing PIE than any other proto-language, and it is by far the best understood of all proto-languages of its age. The vast majority of linguistic work during the 19th century was devoted to the reconstruction of PIE or its daughter proto-languages (such as Proto-Germanic), and most of the modern techniques of linguistic reconstruction (such as the comparative method) were developed as a result. These methods supply all current knowledge