Supreme Court Chief Justice Roger B<span>. </span>Taney<span> made the pro-slavery ruling in the 1857 Dred Scott Case that deemed blacks weren't citizens of the United </span>States<span>.</span>
Answer:
Eugenics is a movement that is aimed at improving the genetic composition of the human race. Historically, eugenicists advocated selective breeding to achieve these goals. Today we have technologies that make it possible to more directly alter the genetic composition of an individual.
They hoped to gain wealth and land