dormitories at that time. OSSM fulfills its educational mission at no charge to its students: tuition, books and other class materials, as well as room and board, are all provided by the taxpayers of the State of Oklahoma. One hundred percent of OSSM graduates are college-bound, and approximately 60% of OSSM graduates choose to remain in-state for college. Of the 1,211 (as of May 2011) graduates since the school's inception, 323 students have been named National Merit Scholars, and an additional 167 students have been selected as National Merit Commended Scholars. Graduates also show exemplary performance in other national scholarship programs, with 227 graduates selected as Robert C. Byrd Scholars, and 124 students nominated for the Presidential Scholars Program, of whom thirteen were named semifinalists and five selected as Presidential Scholars. Graduates excel in statewide scholarship programs, with 553 students receiving Oklahoma State Regents for Higher Education Scholarships and 92 students named Academic All-Staters by the Oklahoma Foundation for Excellence. Twice, in 1998 and again in 2000, the school had the highest ACT composite scores of any high school in the nation. OSSM is also listed as one of the best public high schools in the nation by the Washington Post, in a list of top-performing schools with elite students. Academics OSSM's graduation requirements include four semesters of History, four semesters of Literature, two years of the same foreign language (unless this was completed at the student's previous high school), one semester of computer science, four semesters of mathematics including math through Calculus II, three semesters of physics including physics through Electricity and Magnetism, two semesters of chemistry, two semesters of biology, four semesters of physical education, two semesters of fine arts, and two semesters of science, math, or computer science electives. OSSM regularly offers the following classes: Additionally, students may arrange to take directed studies with faculty members. Many OSSM students choose to participate in the mentorship program in their senior year, in which they perform research with a mentor (who may be an OSSM faculty member, or an off campus expert). Campus OSSM is located on thirty-two acres at the northwest corner of 10th Avenue and Lincoln Boulevard near downtown Oklahoma City, near the University of Oklahoma Health Sciences Center. Its main academic building, Lincoln School, was built in 1903, and used as an elementary school, then torn down and rebuilt in 1948 Oklahoma City Public Schools and