The Black feminist movement is based on the philosophy that racism and sexism have both played a significant role in the social inequalities that Black women have experienced. It became a separate entity from the women’s movement and civil rights movement out of necessity, since Black women were often overlooked. The argument was that Black women had unique experiences because of them being women and being Black, so there should be a separate movement that was directed towards them specifically. The concept that Black women had unique experiences that required sustained attention was first proposed in 1851 by Sojourner Truth, when she delivered her now famous speech “Ain’t I a Woman?”