men, these schools were staffed by women who had graduated and were now able to become teachers themselves. The number of girls' academic schools in the Northeast and mid-Atlantic increased rapidly beginning in the mid-19th century. By the late 19th century, such schools were extending and reinforcing the tradition of women as educators and supervisors of American moral and ethical values. History of republican motherhood The term "republican motherhood" was not used in the eighteenth or nineteenth centuries. It was first used in 1976 to describe the American ideal by the historian Linda K. Kerber, in her article "The Republican Mother: Women and the Enlightenment – An American Perspective" and then again in 1980 in her book Women of the Republic: Intellect and Ideology in Revolutionary America. The historian Jan Lewis subsequently expanded the concept in her article "The Republican Wife: Virtue and Seduction in the Early Republic," published in the William and Mary Quarterly (1987). The early seeds of the concept are found in the works of John Locke, the notable seventeenth-century philosopher, particularly his Two Treatises of Government. In his First Treatise, he included women in social theory, and in his Second Treatise defined their roles more clearly. As Kerber quotes in her 1997 essay, Locke wrote: "[T]he first society was between man and wife, which gave beginning to that between parents and children... conjugal society is made by a voluntary compact between man and woman." In other words, contrary to the traditional sexual hierarchy promoted by his contemporary Robert Filmer and others, Locke believed that men and women had more equal roles in a marriage. Women were expected to focus on domestic issues, but Locke's treatises helped appreciation of the value of the domestic sphere. Although Locke argued less in support of women after he had dissected Filmore's writings, his treatises were influential in highlighting the role of women in society. Long-term influence Although the notion of republican motherhood initially encouraged women in their private roles, it eventually resulted in increased educational opportunities for American women, as typified by Mary Lyon and the founding in 1837 of "Mount Holyoke Female Seminary", later Mount Holyoke College. The ideal produced women with initiative and independence; as Kerber says, it was "one side of an inherently paradoxical ideology of republican motherhood that legitimized political sophistication and activity." Educated Northern women became some of the strongest voices and organizers of the