San Diego, California is home to the private, Roman Catholic University of San Diego (USD), which also serves as a research institution. The autonomous San Diego College for Women and San Diego University, which included both the College for Men and the School of Law, amalgamated into what is now known as the University of San Diego in 1972. The academic institutions were both chartered in July 1949. Since that time, the university has expanded to include a total of nine different undergraduate and graduate schools. These schools are as follows: the Shiley-Marcos School of Engineering, the Joan B. Kroc School of Peace Studies, the Hahn School of Nursing and Health Science, the School of Leadership and Education Sciences (SOLES), the Knauss School of Business, and the Division of Professional and Continuing Education. The University of San Diego (USD) has around 9,073 students enrolled in its undergraduate, graduate, paralegal, and legal programmes. USD offers 89 undergraduate and graduate degrees. It is categorised as an R2 university, which stands for "Doctoral Universities - High Research Activity."