the 13th Amendment abolished the slavery, the 14th was effectively a bill of rights, guaranteeing the new black citizens their political and legal equality, the 15th stated in unambiguous terms that citizens' Rights had not to be limited by "race, color or previous condition of servitude".
Dr Jonas Salk developwd the vaccine to prevent polio.
Answer: Most teachers were men .
<span>Carter demonstrated the importance of the energy question by
unifying the federal agencies to form the Department of Energy that would
coordinate matters energy. This is because the energy crisis of the 1970s
demonstrated the need for unified energy planning within the federal government</span>
Which war is the question stating?