Berlin's Third Gender (Berlins drittes Geschlecht) by Dr Magnus Hirschfeld is a description of queer lives in Berlin around 1900 (published 1905). Even though it's naturally sad in some ways, it's also encouraging: Berlin was comparatively liberal at the time, and I enjoyed the descriptions of queer groups, events, relationships, and creative side-stepping of general conventions. The descriptions are very vivid and obviously well-researched, and contain lots of amusing facts about everyday life in different social circles.