Columbia University on Tuesday announced the 2006 winners of the Bancroft Prizes — one of the top honors in the field of history. The winners are Erskine Clarke, a professor of American religious history at Columbia Theological Seminary, in Georgia, for Dwelling Place: A Plantation Epic (Yale University Press); Odd Arne Westad, a professor of history at the London School of Economics and Political Science, for The Global Cold War: Third World Interventions and the Making of Our Time (Cambridge University Press); and Sean Wilentz, director of the American studies program at Princeton University, for The Rise of American Democracy: Jefferson to Lincoln (Norton).