To speak of "new" social movements is to imply a category of "old" social movements. Those who write in this tradition appear to conceive of old movements as those that were distinctively associated with the class systems of industrial capitalism, for example, liberalism and the workers' movements. New movements are those that are less class-based, including the women's movement, various ethnic movements, the ecology movement, the peace movement, and the antistate movement. Conceptually, the distinction creates a few problems. Some of the "new" movements, for example, the women's movement and the peace movement, have very long histories. Also, it is possible to identify various kinds of movements, such as popular uprisings in Rome and religious movements in medieval times and the Reformation, that are older than those identified as "old." This suggests that the distinction between old and new as currently discussed is limited mainly to the distinction between classical industrial capitalism and contemporary industrial (or postindustrial) society.