 Eldridge Cleaver's book "Soul on Ice" was written from his experiences in the California correctional system; it contributed to black militancy.Civil rights protest activity had an observable impact on white American's views on race and politics over time.White people in counties in which civil rights protests of historical significance occurred have been found to have lower levels of racial resentment against blacks, are more likely to identify with the Democratic Party as well as more likely to support affirmative action.