In the 1830s, nearly 200 years after slavery became an institution in the United States, the question of emancipation had barely been discussed. But on the western frontier of Ohio, future ministers were wrestling with the moral implications of bondage. Their debates sparked a growing national discussion of the abolition of slavery that would ultimately end in civil war. And their legacy of free speech lives on today. In recognition of Black History Month, ideastream's Karen Schaefer reports from Oberlin.