By this time, Walla Walla College was the largest Seventh-day Adventist college in the world. Walla Walla's success however led to further conflicts with the church, when several theology professors were fired in 1938 and the college president was forced to resign. In 1939, the Columbia Auditorium opened, a popular performing arts venue. In the 1940s, a number of important developments helped found some of Walla Walla's most popular programs. An airfield was built in 1942 which led to the start of Walla Walla's aviation program. In 1944, the present library building was completed, and in 1947 the present boys dorm was built. In 1945, the village that had grown up to support the college was incorporated as the city of College Place, Washington. In 1947, the university opened up the first school of engineering in the Seventh-day Adventist church, and the first physical education program started around the same time. Also in 1947, the school opened its first satellite campus, when it began its school of nursing at the Portland Sanitarium, today Adventist Health Portland. In 1948, the college's first master's program was offered in Biology, and a master's degree in Education began two years later. A second satellite campus was opened in 1954 at Rosario Beach in Anacortes, Washington, for the marine biology program. Enrollment more than doubled in the post-war years, reaching 1,300 by 1950. Growth slowed in the 1960s as the college matured. A church was built in 1962, the present-day University Church. The college radio station, KGTS, began broadcasting in 1963, as the first FM-radio station in the Walla Walla Valley. Several buildings were built towards the end of the decade. The college also began to liberalize its rules, allowing its female students more freedom in how they dressed, and also hired its first full-time black professor. In 1971, the university's engineering school was granted accreditation. In the 1970s, the college ran into financial difficulties, and a number of college industries were closed, sold, or privatized in an effort to keep the school's finances under control. To make matters worse, a fire damaged the women's dorm, and in 1978 a fire burned the Columbia Auditorium to the ground. However, enrollment reached 2,000 by the middle of the decade. In the 1980s, WWC reached out to alumni to help the school out, and an endowment fund began in 1987. Also in 1987, a graduate program in social work began.