Similarities--whites were in the dominant group in each region. Violence was common to exert power over the minority racial group to include lynchings. Voting and citizenship restrictions were also in place against the minority groups.
Differences--the targeted group in the South were blacks and in the West were blacks but also the Chinese population. In the South, racial order was the motivation for much of the racial conflict. In the West, job competition was the basis for much of the racial conflict.
the abbreviation AD is an abbreviated time period that stands for Anno Domini or In the Year of the Lord.
The author who proposed the theory of "natural selection," which other people called "survival of the fittest" was named Charles Darwin. These two ideas are the founding basis of the theory of evolution.