Complex sentence: The Baltic International Academy (up to 2006 it was called Baltic Russian Institute) is the largest non-government higher education establishment in the Baltic States and Eastern European countries (it was established in 1992) amounting 7,500 students, including 450 foreign students from 15 countries worldwide.
Split into simpler sentences: The Baltic International Academy (up to 2006 it was called Baltic Russian Institute) is the largest non-government higher education establishment in the Baltic States and Eastern European countries. It was established in 1992 and presently has 7,500 students, including 450 foreign students from 15 countries worldwide.