On February the 15th, in 1898, The battleship Maine was sunk by the Spanish crown, in Havana Harbor. This was the reason why the United States declared war on Spain in May of the same year.
When the war ended, in December of 1898, Spain had lost all its control over the territories of Puerto Rico, Cuba, The Philippines Islands, and Guam, with some smaller islands as well.
The War ended with the ratification of the Treaty of Paris, that was signed on December 10th, 1898.
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 person with better evidence and reasoning