The men's liberation movement is a social movement critical of the restraints which society imposes on men. Men's liberation activists were generally sympathetic to feminist standpoints. The men's liberation movement is not to be confused with different movements such as the men's rights movement in which some argue that modern feminism has gone too far and additional attention should be placed on men's rights. The men's liberation movement stresses the costs of some negative portions of "traditional" masculinity, whereas the men's rights movement is largely about perceived unequal or unfair treatment of men by modern institutions because of, or in spite of those traits ubiquitous to traditional masculinity. The men's liberation movement also aims to liberate men from stereotypes and the attitudes that prevent them from expressing their emotions. History The men's liberation movement, as recognized by feminists and gender scholars, developed mostly among heterosexual, middle-class men in Britain and North America as a response to the cultural changes of the 1960s and 1970s, including the growth of the feminist movement, counterculture, women's and gay liberation movements, and the sexual revolution. Jack Sawyer published an article titled "On Male Liberation" in Liberation journal in the autumn of 1970, in which he discussed the negative effects of stereotypes of male sex roles. 1971 saw the birth of men's discussion groups across the United States, as well as the formation by Warren Farrell of the National Task Force on the Masculine Mystique within the National Organization for Women. Robert Lewis and Joseph Pleck sourced the birth of the movement to the publication of five books on the subject in late 1974 and early 1975, which was followed by a surge of publications targeted to both lay and more academic audiences. The movement led to the formation of conferences, consciousness raising groups, men's centers, and other resources across the United States. The male liberation movement as a single self-conscious liberal feminist movement dissolved during the late 1970s. By the early 1980s, members of the male liberation movement had fully split into two entities. The members who had placed greater emphasis on the 'cost of male gender roles to men' than the 'cost of male gender roles to women' had formed the men's rights movement focusing on issues faced by men. The members who saw sexism exclusively as a system of men oppressing women rejected the language of sex roles and created pro-feminist men's