context: Gyeongsang National University is a base national university in Gyeongsangnam-do. October 1948 Gyeongnam Provincial Elementary School of Pearl Agriculture was established. In March 1968, it was changed to a national university and renamed as Gyeongsang National University in July 1972. In March 1980, he was promoted to a university and changed his name to Gyeongsang National University. The campus is divided into two locations in Jinju, one in Tongyeong, and one in Changwon.
question: When is Gyeongsang National University established?
answers.text: October 1948