context: REGINA PACIS HIGH SCHOOL was established on July 17, 1951. At its inception, the school was called the Princess Section Kanisius High School, under the auspices of the Kanisius Foundation based in Semarang. Based on the Ministerial Letter P and K, No: 30970 / D / 4/71 dated November 13, 1971 it was determined that starting on January 1, 1972 the Surakarta-subsidized daughter of Kanisius High School in Surakarta had its name changed to REGINA PACIS PUBIS SUBSIDIARY SURAKARTA. The management is then left to the Surakarta Winaya Bhakti Foundation. In 1979, the number of classes increased to 15 classes. In order to improve academic skills, physical, chemical and biological laboratories are built. In 1985, Regina Pacis High School obtained a certificate of accreditation status Equated with the Decree of the Director General of PDM No: 007 / C / Kep / I / 1985 dated January 17, 1985.
question: When was the Regina Pacis School established?
answers.text: July 17, 1951