The Daughters of Bilitis is a key landmark in New York's lesbian history. The organisation was formed in San Francisco in the 1950s. Barbara Gittings, the gay rights activist, opened the New York outlet. It's now - surprise surprise - an apartment block.

Back in the day, it hosted events, academic activities and social occasions, all geared towards lesbian liberation and community activism. Friends of Sappho can visit and pay their respects to the sisters who paved the way. So many of them were Daughters of Bilitis.