Back in the days of Middle French, ménagerie meant "the management of a household or farm" or "a place where animals are tended." When English speakers adopted menagerie in the 1600s, they applied it specifically to places where wild and often also foreign animals were kept and trained for exhibition, as well as to the animals so kept. This second meaning was eventually generalized to refer to any varied mixture, especially one that includes things that are strange or foreign to one's experience.