International English the sphere of influence of English-speaking countries. Here English may serve as a useful lingua franca between ethnic and language groups. Higher education, the legislature and judiciary, national commerce, and so on, may all be carried out predominantly in English. The "expanding circle" refers to those countries where English has no official role, but is nonetheless important for certain functions, e.g. international business and tourism. By the twenty-first century, non-native English speakers have come to outnumber native speakers by a factor of three, according to the British Council. Darius Degher, a professor at Malmö University in Sweden, uses the term
Italian language to different linguistic branches. The only exceptions to this are twelve groups considered "historical language minorities", which are officially recognized as distinct minority languages by the law. On the other hand, Corsican (a language spoken on the French island of Corsica) is closely related to Tuscan, from which Standard Italian derives and evolved. The differences in the evolution of Latin in the different regions of Italy can be attributed to the presence of three other types of languages: substrata, superstrata, and adstrata. The most prevalent were substrata (the language of the original inhabitants), as the Italian dialects were most likely