In 2015 a project "Homosexualität_en" took place in Berlin. Various institutions were involved in it.
The most important event, which gave the name to the whole project, was the exhibition placed in the Museum of Gays (Schwules Museum) and the German Historical Museum (Duetsches Historisches Museum). While the first museum showed the works of the contemporary artists, the second one focused on the history of homosexuality.
The exhibition was divided thematically and presented the phenomenon of homosexuality as a social-cultural, historically presupposed construct. Unfortunately, it was not clear which period and which area were highlighted.
The plural "homosexualities" was not sufficient explained as well. Nevertheless, the exhibition was one of the most considerable museum events in 2015 in Berlin - "Homosexualität_en" provided several impulses for the next research and it was an unusual social-political impetus.