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
English as a second or foreign language group. In the UK and Ireland, the term "EAL" (English as an additional language) is used, rather than ESOL, when talking about primary and secondary schools, in order to clarify that English is not the students' first language, but their second or third. The term ESOL is used to describe English language learners who are above statutory school age. Other acronyms were created to describe the person rather than the language to be learned. The term Limited English proficiency (LEP) was first used in 1975 by the Lau Remedies following a decision of the U.S. Supreme Court. ELL (English Language