Centre for Lusophone and European Literatures and Cultures and to reflections on entrepreneurship, regarded as one of the drivers of innovation in Portuguese culture. In 2011, CLEPUL changed its name to Centre for Lusophone and European Literatures and Cultures of the Faculty of Letters of the University of Lisbon, while keeping its acronym, in order to preserve its history while embracing its new scientific landscape. In 2014, CLEPUL is home for 536 researchers and 110 integrated members, organized in 7 Research Groups: Each Research Group has its associated Pole in other universities, including in Brazil and Angola, gathering experts in Literary science, Linguistics, History, Art History, Cultural studies,
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