Bisexual activism became more visible toward the end of the 1960s in the United States. In 1966 bisexual activist Robert A. Martin (a.k.a. Donny the Punk) founded the Student Homophile League at Columbia University and New York University. In 1967 Columbia University officially recognized this group, thus making them the first college in the United States to officially recognize a gay student group. Activism on behalf of bisexuals in particular also began to grow, especially in San Francisco. One of the earliest organizations for bisexuals, the Sexual Freedom League in San Francisco, was facilitated by Margo Rila and Frank Esposito beginning in 1967. Two years later, during a staff meeting at a San Francisco mental health facility serving LGBT people, nurse Maggi Rubenstein came out as bisexual. Due to this, bisexuals began to be included in the facility's programs for the first time.