 Unequal treatment in social and economic life—in schools, public accommodations, employment, housing, insurance, pensions, investment, sports, the environment, and more—has been another target of feminist legal critique. Here, too, the question has been what equal treatment under law requires in the face of differences, including supposed biological differences, histories of discrimination, and entrenched social institutions. The law has developed from the removal of outright barriers—male-only public universities, for example—to non-discrimination, to consideration of what conditions and practices adversely affect women to the extent of generating inequalities that ought to be addressed in law.