"the essay by the Southern-born abolitionist, Sarah Grimké, The Equality of the Sexes and the Condition of Women (1838), represented, in the opinion of historian Eleanor Flexner, the first serious discussion of woman's rights by an American woman. Sarah Grímké argued for social, political, economic, and legal equality between the sexes. She condemned the rape of Black women under slavery and observed the injurious effects of that system upon the white women of the South. Likewise, she pointed to the effects of inequality upon marital relations, portending the future content of the feminist claim: "That there is a root of bitterness continually springing up in families and troubling the repose of both men and women, must be manifest to even a superficial observer; and I believe it is the mistaken notion of the inequality of the sexes. As there is an assumption of superiority on the one part, which is not sanctioned by Jehovah, there is an incessant struggle on the other to rise to that degree of dignity, which God designed women to possess in common with men, and to maintain those rights and exercise those privileges which every woman's common sense, apart from prejudices of education, tells her are inalienable; they are a part of her moral nature, and can only cease when her immortal mind is extinguished.”"