Centre for Lusophone and European Literatures and Cultures public high quality reference works in its field of expertise and complete works of pioneer sources of Portuguese and Lusophone culture and literature, such as works by Manuel Antunes, Mário Martins, Diogo de Teive and Fernão de Oliveira. Recent large scale projects by CLEPUL include "The Complete Works of Father António Vieira" and the complete pombaline works, both demanded by international scholars for many centuries. Other relevant projects include internationally recognized scientific works and recipient of prizes, such as: "Dicionário Temático da Lusofonia" [Thematic Dictionary of Lusophony] (2005), "Jardins do Mundo" [Gardens of the World] (2008), and "Dicionário Histórico das
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