Portuguese language in Asia joined the CPLP shortly after its independence at the turn of the 21st century. Indonesia has also expressed interest in joining the CPLP. The Instituto Camões maintains language centres in Macau, Goa, Busan and Dili. In Asia, Standard European Portuguese (português-padrão) forms the basis for the written and spoken norm, exclusively to East Timor and Macau. Portuguese language in Asia The Portuguese language is spoken in Asia by small communities either in regions which formerly served as colonies to Portugal, notably Macau and East Timor where the language is official albeit not widely spoken, or of Lusophone immigrants, notably the
Proto-language system of isoglosses which held together dialects which were spoken by various tribes, from which the historically attested Indo-European languages emerged. Proto-language A proto-language, in the tree model of historical linguistics, is a language, usually hypothetical or reconstructed, and usually unattested, from which a number of attested known languages are believed to have descended by evolution, forming a language family. In the strict sense, a proto-language is the most recent common ancestor of a language family, immediately before the family started to diverge into the attested "daughter languages". It is therefore equivalent with the "ancestral language" or "parental language" of