we don't think that men are going to give up their power and privilege easily. >> the women's movement, the sexual revelation and the gay liberation movement all had their origins before the '70s. but the '70s are when americans had to make sense of them in their daily lives and in their institutions and communities. >> women's liberation is only one of a number of groups ranging from stridently militant to traditionally feminist who feel that women haven't yet won their rights. they don't constitute a majority of women but their numbers are growing. >> today all over this nation the women's liberation movement is marking the 50th anniversary of women gaining the vote by demonstrations and strikes. >> join us now! sisterhood is powerful! join us now! >> the national organization for women called a nationwide women's strike. there were big posters, don't iron while the strike is hot. >> it was meant to commemorate the 50th anniversary of the granting of suffrage to american women.