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Society of Janus

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A San Francisco nonprofit, volunteer-run organization providing education and peer support around consensual adult BDSM and power exchange.

Last updated August 26, 2026

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Overview

The Society of Janus is a San Francisco-based BDSM education and support organization founded in August 1974 by Cynthia Slater and Larry Olsen. It is recognized as the second BDSM organization founded in the United States, following The Eulenspiegel Society. The group describes its purpose around the practice and understanding of safe, consensual, and non-exploitative adult power exchange, combining community support with educational activity. The organization takes its name from Janus, the Roman deity traditionally depicted with two faces. The founders connected that duality with the dominant and submissive dimensions that can exist within BDSM identities and relationships. Janus's association with doorways, transitions, beginnings, and endings also served as a symbolic framework for self-acceptance and freedom from shame. A further association with war represented opposition to stereotypes and social stigma directed at people involved in consensual BDSM. Society of Janus has historically functioned as a nonprofit and volunteer-run community institution rather than as a commercial consumer brand. Its activities have included educational programming, peer support, community events, and the publication of Yellow, a monthly digital newsletter. The organization has also maintained an institutional role within the broader San Francisco leather and BDSM communities, helping preserve community history and recognize influential participants. A women's discussion group within the Society of Janus called Cardea operated from 1977 to 1978. Several lesbian members of Cardea, including Pat Califia and Gayle Rubin, later helped establish Samois in 1978, an influential lesbian BDSM organization. This connection places Society of Janus within the organizational history of both the wider BDSM movement and lesbian-feminist leather communities, although Samois was a separate organization. Society of Janus was among the founding coalition partners of the National Coalition for Sexual Freedom, established in 1997. In 2004 it created the Society of Janus Hall of Fame, recognizing notable figures associated with BDSM, leather, sexuality education, and related communities. The organization celebrated its fortieth anniversary in 2014 with a dinner, Hall of Fame induction ceremony, and play party; the event received a San Francisco Leather Community Award for best organization anniversary event. In 2018, the Society of Janus itself was inducted into the Leather Hall of Fame. The organization's historical records are held by the Leather Archives & Museum in Chicago. Its legacy is also represented in San Francisco's South of Market Leather History Alley, where co-founder Cynthia Slater is commemorated with a metal boot-print installation. The Society of Janus remains best understood as a community-based educational and support organization, not as a conventional product company.

History

The Society of Janus was founded in San Francisco in August 1974 by Cynthia Slater and Larry Olsen. It is generally described as the second BDSM organization established in the United States, after The Eulenspiegel Society. From its beginning, the group sought to create a setting in which adults interested in BDSM could learn, meet peers, and discuss their practices without the shame and misinformation commonly associated with them. The name Society of Janus expresses several ideas important to the founders. Janus, the Roman god of two faces, was interpreted as a symbol of the dominant and submissive sides of BDSM. The deity's connection with gates and transitions suggested the movement toward self-acceptance, while the imagery of beginnings and endings represented liberation from guilt, fear, and self-loathing. The founders also used Janus's warlike associations as a metaphor for challenging cultural stereotypes about BDSM. The organization developed as a nonprofit and volunteer-run association devoted to safe, consensual, and non-exploitative adult power exchange. Its work has included educational and support activities, community gatherings, and the monthly digital newsletter Yellow. Rather than selling a conventional line of branded goods, the Society of Janus has operated as a membership and community institution whose value lies in information, social connection, and cultural continuity. From 1977 to 1978, Cardea operated as a women's discussion group within the Society of Janus. A number of lesbian participants in Cardea, including Pat Califia and Gayle Rubin, subsequently helped found Samois on June 13, 1978. Samois became a separate, exclusively lesbian BDSM organization and is historically regarded as the first lesbian BDSM group in the United States. The development of Samois illustrates how specialized identities and communities emerged from broader BDSM organizations during the late 1970s. The Society of Janus later broadened its institutional role beyond local meetings. In 1997 it was one of the coalition partners involved in establishing the National Coalition for Sexual Freedom. This participation connected the organization with wider efforts relating to privacy, sexual liberty, and the rights of consenting adults. In 2004, the Society of Janus created its Hall of Fame. Inductees have included Guy Baldwin, Patrick Califia, Dossie Easton, Janet Hardy, Viola Johnson, Midori, Fakir Musafar, Charles Moser, Gayle Rubin, Cynthia Slater, Jim Ward, Mollena Williams-Haas, and Jay Wiseman. The Hall of Fame provided a formal mechanism for honoring educators, writers, performers, organizers, and other influential figures in BDSM and leather communities. The organization marked its fortieth anniversary in 2014 with a dinner, Hall of Fame ceremony, and play party. The celebration was recognized at the San Francisco Leather Community Awards as the year's best organization anniversary event. In 2017, the San Francisco South of Market Leather History Alley installation honored co-founder Cynthia Slater with a metal boot-print memorial. In 2018, the Society of Janus itself entered the Leather Hall of Fame. The Society's records are housed at the Leather Archives & Museum in Chicago, providing an archival connection to the documented history of American leather and BDSM communities. References to the organization have also appeared in reporting and cultural coverage of San Francisco BDSM and leather life. The Society of Janus is therefore significant both as a continuing support and education group and as one of the early durable institutions of organized BDSM community life in the United States.

  • 2018

    Inducted into the Leather Hall of Fame

    [1]

    The Society of Janus was recognized by induction into the Leather Hall of Fame.

  • 2017

    Cynthia Slater commemorated in Leather History Alley

    [1]

    A South of Market Leather History Alley installation honored Society of Janus co-founder Cynthia Slater.

  • 2014

    Fortieth anniversary event receives community award

    [1]

    The Society's anniversary dinner, Hall of Fame ceremony, and play party was recognized as the best organization anniversary event at the San Francisco Leather Community Awards.

  • 2004

    Society of Janus Hall of Fame established

    [1]

    The organization launched a Hall of Fame recognizing prominent figures connected with BDSM and leather communities.

  • 1997

    Founding coalition partner of the National Coalition for Sexual Freedom

    [1]

    The Society of Janus participated in the coalition that established the National Coalition for Sexual Freedom.

  • 1978

    Samois emerges from members associated with Cardea

    [1]

    Several lesbian members associated with Cardea helped establish Samois, a separate lesbian BDSM organization in San Francisco.

  • 1977

    Cardea begins as a women's discussion group

    [1]

    Cardea operated within the Society of Janus as a women's discussion group before ending in 1978.

  • 1974

    Society of Janus founded

    [1]

    Cynthia Slater and Larry Olsen founded the Society of Janus in San Francisco in August, establishing one of the earliest enduring BDSM organizations in the United States.

Products and positioning

A nonprofit, volunteer-led San Francisco institution centered on education, mutual support, harm reduction, and community-building for adults interested in consensual BDSM and power exchange.

  • Digital newsletter

    Yellow

    Yellow is the Society of Janus's monthly digital newsletter. It functions as a recurring communication channel for organizational information, educational material, and community-related content. The publication reflects the Society's role as an information and support organization rather than a commercial product brand.

  • Community education and support · 1974

    BDSM education and support programming

    The Society provides education and peer support focused on consensual adult BDSM and power exchange. Its stated emphasis is on safety, consent, and avoiding exploitation, with programming intended to help participants understand practices, relationships, and community norms.

  • Recognition program · 2004

    Society of Janus Hall of Fame

    Established in 2004, the Hall of Fame recognizes individuals who have contributed to BDSM, leather, sexuality education, writing, organizing, or related community work. It is an institutional recognition program rather than a commercial offering.

Marketing campaigns

  • 2014Fortieth Anniversary Dinner, Hall of Fame Induction Ceremony and Play Party

    United States

    The Society marked four decades of activity with a combined anniversary dinner, Hall of Fame induction ceremony, and play party, bringing together its historical, educational, and social functions.

    Outcome. The event received the San Francisco Leather Community Award for Best Organization Anniversary Event.

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