Cultural pluralism is a term used when smaller groups within a larger society maintain their unique cultural identities, whereby their values and practices are accepted by the dominant culture, provided such are consistent with the laws and values of the wider society. As a sociological term, the definition and description of cultural pluralism has evolved. It has been described as not only a fact but a societal goal. In a pluralist culture, groups not only co-exist side by side but also consider qualities of other groups as traits worth having in the dominant culture. Pluralistic societies place strong expectations of integration on members, rather than expectations of assimilation. The existence of such institutions and practices is possible if the cultural communities are accepted by the larger society in a pluralist culture and sometimes require the protection of the law. Often, the acceptance of a culture may require that the new or minority culture remove some aspects of their culture which is incompatible with the laws or values of the dominant culture. The pluralist Hamed Kazemzadeh argues that the concept of pluralist culture has been prevalent since ancient times; for example, the Achaemenid Empire, which was founded by Cyrus the Great, successfully followed a policy of incorporating and tolerating various cultures. Cultural pluralism is distinct from multiculturalism, which lacks the requirement of a dominant culture. If the dominant culture is weakened, societies can easily pass from cultural pluralism into multiculturalism without any intentional steps being taken by that society. If communities function separately from each other, or compete with one another, they are not considered culturally pluralistic. In 1971, the Canadian government referred to cultural pluralism, as opposed to multiculturalism, as the "very essence" of the nation's identity. Cultural pluralism can be practiced at varying degrees by a group or an individual.