Walker's wild appeal against the trend of the times showed how the world was changing after the coming of the cotton- gin. By 1830 slavery seemed hopelessly fastened on the South, and the slaves thoroughly cowed into submission. The free Negroes of the North, inspired by the mulatto immigrants from the West Indies, began to change the basis of their demands; they recognized the slavery of slaves, but insisted that they themselves were freemen, and sought assimilation and amalgamation with the nation on the same terms with other men. Thus, Forten and Purvis of Philadelphia, Shad of Wilmington, Du Bois of New Haven, Barbadoes of Boston, and others, strove singly and together as men, they said, not as slaves; as "people of color," not as "Negroes." The trend of the times, however, refused them recognition save in individual and exceptional cases, considered them as one with all the despised blacks, and they soon found themselves