Perhaps in the Civil War era, the Dred Scott decision angered Abolitionists as the Supreme Court declared African Americans could not be a US citizen as they were not mentioned as as in the Constitution and that Congress abused their power by abolishing Slavery above the Mason Dixon line and in the New Western territories.
Northerners and famously Fredrick Douglass denounced the court ruling.<span />
Arkansas river that’s the answer
The Columbian Exchange is marked by the exchange of plant and animal life between the Old and New Worlds. The exchanges<span> of plants, animals, diseases and technology transformed European and Native American ways of life.</span>
It unified and increased the power of the national state. It increased the feeling of French nationalism, and it set a precedent for a democratic French government.
I believe it is Australopithecus afarensis