health programs and hospital. Despite the budgetary concerns and challenges from Albany, the university released a formalized plan early in 1968 and funding for recruitment of faculty was provided. At the same time, residential housing was expanded to 3,000, the Stony Brook Union opened in 1970, and in 1971, the massive expansion project for the campus library (named in memory of Frank Melville Jr., father of philanthropist Ward Melville) was completed. Despite the fast-paced growth, campus infrastructure often struggled to keep pace: overcrowding, expansion, landscaping, lighting, and safety were persistent problems at the university, which led to multiple protests and growing tension between the student body and the administration. In January 1968, the infamous "Operation Stony Brook" drug raid resulted in the arrest of twenty nine students and in the fall of 1968, tension climaxed as the administration and students decided on a three-day moratorium to bring together the entire university with the goal of improving communication between the students, faculty, and administration. The 1970s witnessed the growth of the university and its transformation as a major research institution within New York's public school system, with strong graduate programs and scientific breakthroughs like the development of magnetic resonance imaging. But the university lagged significantly in undergraduate education, prioritizing graduate education and research over undergraduate studies and student life. By 1975, enrollment had reached 16,000 and expansion crossed over Nicolls Road with the construction of the Health Science Center, which would be completed in 1980. In 1981, John Marburger was inaugurated as the third president, and continued the expansion. By the late 1980s, the administration affirmed the need to improve other areas of the institution, which included undergraduate education, student and residential life, and intercollegiate athletics. In 1994, the university approved a decision to transition athletics to the Division I of the NCAA by 1999 and followed with the construction of the Stony Brook Arena and the expansion of the Indoor Sports Complex. Further expansion into the 21st century The 1990s affirmed Stony Brook's success at building a research university with a strong undergraduate education. Under the leadership of its fourth president, Shirley Strum Kenny, the administration sought out to showcase the value of the institution. Kenny was responsible for campus wide improvement projects which included large scale landscaping, renovations of every residence hall, the continued growth of the athletics programs, the improvement of student life, ever increasing research expenditures, a