was only foiled by San Beda in 1959 ending the legendary decade of the 1950s. 1960s to 1980s NCAA basketball champions formed the core of the Filipino team sent to international competitions during 1960 and 1961 in Japan. The opening of the Araneta Coliseum, the largest indoor arena in the Philippines, prompted the league to transfer the championship round there. By the 1960s, the league experienced problems such as eligibility of players and interscholastic hooliganism. This led to disagreements among member schools, and as a result the 1962–63 season was suspended, and the following two seasons were held in a loose conference format, where the home and away system was used. San Sebastian College - Recoletos joined the league in 1969. Trinity College of Quezon City also joined in 1974, the league's golden anniversary, according to newspapers and other publications of that year. (However, the NCAA's official website states that Trinity joined the league in 1985; see next section.) After the riotous games of the late 1970s, several of the founding members left the league. The Ateneo de Manila University left the league in 1978 due to violence, which also marred a championship series with San Beda, while La Salle left after a riotous game with Letran in 1980. Ateneo de Manila was accepted in the UAAP in 1978, while La Salle had to wait for six years to become a UAAP member. San Beda left the league in 1983, reasoning that the college focused on school-based sports activities like intramurals. With the withdrawal of Ateneo de Manila, league games returned to the old Rizal Memorial and to the PhilSports Arena, since the Loyola Center was now the location of the UAAP tournament. Also with the withdrawal of the three founding members, most daily publications tagged the NCAA as "an ironic journey from sports to violence." 1980s to 1990s expansion As the league was reduced to four members, new membership was actively pursued. Perpetual Help College of Rizal was accepted as a member in 1984. A year later, Trinity College of Quezon City finally was accepted as a full member after being a probationary member for more than a decade, according to publications of that period). However, Trinity was not able to meet league requirements and was dropped from the league in 1986, the same year San Beda returned (despite sports articles in newspapers that year stating Trinity voluntarily left