Cordero, Marina Roviro, and Juan Herrero. On September 22, 1913, the departments of Law and Pharmacology were established. The university at the time required only an eighth grade diploma, but with the expansion of its courses, this requirement changed. After 1917, the departments of Normal Education, Liberal Arts, Pharmacology, and Law required a high school diploma for admission. On February 21, 1931, Dr. Carlos E. Chardón was appointed as chancellor of the university. During his tenure the university experienced significant growth in endowments. These were used in the expansion of the physical facilities at the Río Piedras and Mayagüez Campuses. This helped turn the university into a respected educational center. Chardón resigned from the post of Chancellor in 1936, being succeeded by Juan B. Soto. The most important part of this period was the expansion of the buildings of the university as part of a plan for the rehabilitation of Puerto Rico. History of student protests The university was the site of social upheaval during the 1960s and 1970s, when nationalist students protested for civil rights, against the war in Vietnam, for the independence of Puerto Rico, and to expel the ROTC from the campus. In 1970 Antonia Martínez was murdered by the police during the anti-education reform and Vietnam War protests of that year. As the shouting started in the street, everyone in the building she was in, on Ponce de León Avenue, went to the balconies to see what was happening. She was, like many others, watching the events, saw policemen attacking at the students, and allegedly shouted at the police ¡Asesinos! (Assassins!). A policeman turned and shot her in the head, killing her and injuring a roommate. A mural of her and her story existed on the College of Humanities, until administrative personnel covered it with paint. Other stories claim that she was shot by mistake. The students of the university also had a strike in the Spring of 2017 during which the school was shut down for several months. Campus and academic facilities The Río Piedras Campus is located in the northern end of the downtown area of Río Piedras, a former town but now a district (barrio) of San Juan, Puerto Rico. The campus is easily accessible via public transportation by means of the Tren Urbano metro system with a station (Universidad) located in campus, and the public bus system of San Juan (AMA). The