At the turn of the 20th Century, the United States was on the rise.
Spain was the last remaining European power in the Western Hemisphere and the US was eager to prove it was top dog.
So, it went to war to kick Spain out of the Western Hemisphere.
It was very much looking for an excuse to fight Spain.
The Supreme Court (c) determined race may be a factor when admitting students, but not the only factor. It upheld affirmative action, allowing race to be one of several factors in college admission policy, not just to fulfill a quota.
The empires of Europe were looking to gain more power and resources so they set out to find new regions and to colonize those regions.
The industrial revolution indeed was a great factor in the growth of population in industrialized countries. The population in industrialized countries had a sudden rise or increase due to the bigger and greater opportunities provided by the country thus, alluring more people to migrate.
