What is the "supreme law of the land" and more powerful than state laws?

How were the economies of the northern and southern states different? how ere they the same? what factors led them to develop differently?

Who was put in the concentration camps? and why

Answer asap and you read the following quote from hiram rhodes revels: i find that the prejudice in this country to color is very great, and i sometimes fear that it is on the in the space provided, reflect on revels’ quote. do you believe that attitudes toward race have improved since this quote was made? is there work still to be done? use examples to support your thoughts.