This research map organizes public transgender history in mainland China into seven intersecting paths—medicine, identity documents, work and courts, community infrastructure, public language, documentary regimes, and digital preservation—and introduces a historical conversion chain plus a source-switch method for reproducible reading.

A substantial research map that organizes nanniang, weiniang, cross-dressing, otokonoko, Nanliang, and related materials through six reusable entry points: speaker, referent and practice, page position, historical pathway, community circulation, and strength of evidence.