This article traces the multiple and rapid changes that have occurred during the past fifteen years, in theorizing "sex/gender arrangements". A secondary aspect is the reception, application and above all modification of these theories by some scholars of European medieval cultural production, in which varieties of difference are found that do not apply in modern societies. Deconstruction of the binary m/f (whether thought of as sexual or gender difference) erupted among feminist thinkers in the 1990s and eventually "queered" academic discourses (...) by destabilizing labels that had been naturalized, including a consistent gender identity for the individual in medieval or modern society. The author claims that queer and post-colonial theory, far from being antithetical to feminist theory, are out-growths of it, and exist in parallel; the proponents of each are concerned with the societal forces, including our own discourses, that maintain difference, and create communities of oppression Yet it is also necessary to raise the question, when will the next radical departure occur, and how will new theories be generated? (shrink)