In the ordinary social life of the Negro, however, the decade after Nat Turner's insurrection was one of the most trying in the history of the race in America. Repressive measures in the Southern states have just been remarked. In the North the free Negro was beginning to feel the force of economic ostracism. In Ohio no Negro was allowed to settle unless he gave bond for his support. When this law and others of similar import began to be put in force in 1829, serious riots prevailed in Cincinnati for three days, in the course of which several Negroes were killed. Mobs in Philadelphia at various times within the period also murdered Negroes. Meanwhile migration was strongly urged in some quarters as a solution of the problem. Says Dr. DuBois: "As early as 1788 a Negro union of Newport, Rhode Island, had proposed a general exodus to Africa. John and Paul Cuffe, after petitioning for the right to vote in 1780, started in 1815 for Africa, organizing an expedition at their own expense which cost four thousand dollars. Lott Carey organized the African Mission Society in 1813, and the first Negro college graduate went to Liberia in 1829 and became superintendent of public schools.... About two thousand black emigrants eventually settled in Hayti." Even after the Civil War migration efforts were renewed, the Baptists and the Methodists of South Carolina joining hands in 1877 in the formation of the Liberian Exodus Joint Stock Company. As early as 1833, however, in his pamphlet entitled "Thoughts on African Colonization," Garrison showed the futility of the whole plan as a means of solving the problem of the Negro in the United States, and time has justified his view. Gradually, in spite of all the discouraging circumstances, hope appeared on the horizon. England emancipated the slaves in her colonies in 1833, and more and more conventions of free Negroes showed an interest in the welfare of the race. A strong foothold began to be gained in certain occupations, such as those of the barber and caterer. Sojourner Truth and Frederick Douglass appeared on the public platform; the poems of Phillis Wheatley ran through three new editions within four years; Elizabeth Greenfield sang before the royalty of Europe; and the African Methodist Church began to show what it was possible for the Negro to do in organization. By 1850, the year of the Fugitive Slave Law, when things were looking especially dark, the turning of the tide was much nearer than most people imagined. The South was still triumphant; but each new victory had to be more fiercely fought for than the last, and awakened stronger and stronger elements of opposition.