OutHistory.org is a website about lesbian, gay, bisexual, transgender, queer, and heterosexual history, and, more generally, gender and sexual history. OutHistory.org comprises elements of an almanac, archive, article, bibliography, book, encyclopedia, library, and museum. OutHistory.org was produced in its first four years by the Center for Lesbian and Gay Studies (CLAGS), located at the City University of New York Graduate Center.