Centre for Lusophone and European Literatures and Cultures as an area of specialization. It was also innovative in the way it combined the filological studies tradition with the newness of the structuralist proposals and sociology of reading. Its initial projects dealt with the study of the different Lusophone literatures, such as Portuguese literature, with special emphasis on studies regarding Camilo Castelo Branco, as well as African literature and Brazilian literature, and matters regarding sociology of reading, in a project directed by Jacinto do Prado Coelho. This established route was continued by the centre's following directors and coordinators (Fernando Cristóvão, Maria Lúcia Lepecki, Manuel Ferreira, Alberto Carvalho and Maria
Proto-Indo-European language concerning PIE since there is no written record of the language. PIE is estimated to have been spoken as a single language from 4500 BC to 2500 BC during the Late Neolithic to Early Bronze Age, though estimates vary by more than a thousand years. According to the prevailing Kurgan hypothesis, the original homeland of the Proto-Indo-Europeans may have been in the Pontic–Caspian steppe of Eastern Europe. The linguistic reconstruction of PIE has also provided insight into the culture and religion of its speakers. As Proto-Indo-Europeans became isolated from each other through the Indo-European migrations, the Proto-Indo-European language became spoken