In 2004, madaris were mainstreamed in 16 regions nationwide, mainly in Muslim areas in Mindanao under the auspices and program of the Department of Education. Public universities are all non-sectarian entities, and are further classified as State Universities and Colleges (SUC) or Local Colleges and Universities (LCU). The University of the Philippines, a system of eight constituent universities, is the national university system of the Philippines. The country's top ranked universities are as follows: University of the Philippines, Ateneo de Manila University, De La Salle University, and University of Santo Tomas. The University of Santo Tomas, established in 1611, has the oldest extant university charter in the Philippines and Asia.