1. A lesbian couple at a demonstration in Albany, N.Y. in 1977.
Via: Diana Davies photographs/New York Public Library
2. Members of the Gay Activists Alliance holding a sit-in at New York State Republican headquarters in New York City in 1970.
Via: Diana Davies photographs/New York Public Library
3. Two men at a demonstration in Albany in 1971.
Via: Diana Davies photographs/New York Public Library
4. The Gay Liberation Day march in New York City in June 1970.
Via: Kay Tobin Lahusen/New York Public Library
5. A man holding a sign at a demonstration in Albany in 1971.
6. The Gay Liberation Front marching on Times Square in 1969.
Via: Diane Davis photographs/New York Public Library
7. A gay rights picket line at the Pentagon in the summer of 1965.
Via: Kay Tobin Lahusen/New York Public Library
8. A “Straights for Gays” sign at the Philadelphia Gay Pride rally and march in June 1972.
Via: Kay Tobin Lahusen/New York Public Library
9. Marsha P. Johnson picketing NYC’s Bellevue Hospital to protest unfair treatment of street people and gays in the 1970s.
Via: Diana Davies Photographs/New York Public Library
10. People participating in Christopher Street Liberation Day, which was close to the two-year anniversary of the Stonewall riots, which were largely considered the catalyst to the LGBT rights movement.
11. Protestors picketing in front of the White House in 1965 over federal employment restrictions.
Via: Kay Tobin Lahusen/New York Public Library
12. People picketing at Independence Hall in Philadelphia on July 4, 1966, in support of gay rights.
Via: Kay Tobin Lahusen/New York Public Library
13. A New York City gay pride march in 1982.
Via: Lesbian, Gay, Bisexual, and Transgender Community Center/New York Public Library
14. The lead banner in the 1972 Philadelphia pride parade.
15. Gay rights icon Frank Kameny during his campaign for Congress in 1971.
Via: Lesbian, Gay, Bisexual, and Transgender Community Center/New York Public Library
16. The Gay Activist Alliance demonstrating against Mafia-controlled gay bars and police harassment in August 1971 in Greenwich Village.
Via: Diana Davies Photographs/New York Public Library
17. People at the Gay Liberation Front march on Times Square in New York City in 1969.
Via: Diana Davies Photographs/New York Public Library
18. A woman holding a poster that says, “I am your worst fear I am your best fantasy,” at the Christopher Street Gay Liberation Day parade in 1970.
Via: Diana Davies Photographs/New York Public Library
19. LGBT protestors marching against the Vietnam War in New York City in November 1971.
Via: Diana Davies Photographs/New York Public Library
All photos via the New York Public Library’s digital collections.