… Keynote Address James Oakes (Professor, History, The Graduate Center-CUNY): “What Was the Crisis of the 1850s?” … Institutions, Yale): “1850s Populism: Economics or White Supremacy?” Joseph T. Murphy (2017-2018 National … Professor, Africana Studies, Wellesley College): “Black, White, and Brown: The Shock and Silence of Harper’s Ferry” …