The International English Language Testing System (IELTS for short) is a well-known international English language test established in 1989 by the British Council, the Cambridge University Examinations Board, the Australian Education International Development Agency, and the Australian Institute of Education. IELTS is a well-known international English language test established in 1989 by the British Council, the Cambridge University Examinations Board, and the Australian Education International Development Agency, and its results are valid for two years.