dress rules that forbade male students from wearing dungarees or sweatshirts on campus at any time and mandated that female students wear skirts and blouses even in extremely cold weather. After Gideonse's retirement in June 1966, a newly-appointed dean of administration, Dante Negro, said he was not bothered by the students' more casual dress "that makes it hard to distinguish between the sexes," calling it "a passing fad." On October 21, 1967, a front-page story in The New York Times reported that the college was virtually closed down by a strike of thousands of students angered by police action against antiwar demonstrators protesting U.S. Navy recruiters earlier in the week. Five days later, another front-page Times story reported that students had agreed to return to classes after an agreement was reached with college administrators after negotiations. A few days after that, President Kilcoyne walked out when New York Mayor John V. Lindsay appeared at the college, citing Lindsay's insult in calling the school "Berkeley East." Around the same time, the college's students were involved in campus protests involving racial issues. In May 1968, Brooklyn College news again made the front page of The New York Times when police broke up a 16-hour sit-in at the registrar's office to demand that more Black and Puerto Rican students be admitted to the school. At trial, a Black Brooklyn judge reacted angrily when one student said they had been reacting to racism and sentenced him and 32 other white students to five days in jail for the sit-in. In May 1969, 19 or 20 Brooklyn College students faced criminal charges in connection with campus disorders during the spring semester, including raids in which students allegedly ransacked files and smoke-bombed the library. In late April 1970, students demanding more open admissions and racial diversity staged a sit-in at President Kneller's office, holding him and five deans there for several hours. The next week, in early May 1970, students seized the president's office and other buildings during a student strike upon the Kent State shootings and the Cambodian Campaign. President Kneller terminated classes, but kept campus buildings open for students and faculty, obtaining a court order against students occupying buildings. In October 1974, 200 Hispanic students took over the registrar's office to protest President Kneller's appointment of a chair of the Puerto Rican Studies Department different than that of the person selected by a faculty