Black feminism is a school of thought which argues that sexism, class oppression, gender identity and racism are inextricably bound together. The way these relate to each other is called intersectionality. The term intersectionality theory was first coined by legal scholar Kimberlé Crenshaw in 1989. In her work, Crenshaw discussed Black feminism, which argues that the experience of being a black woman cannot be understood in terms of being black, and of being a woman, considered independently, but must include the interactions, which frequently reinforce each other. Feminism at its core is a movement to abolish the inequalities women face. The Combahee River Collective argued in 1974 that the liberation of black women entails freedom for all people, since it would require the end of racism, sexism, and class oppression.