The Union Pacific Railroad started at Omaha, Nebraska.
These problems mostly included the issue of racim which was a very problematic issue in the 19th and the 20th century. Not only this, another issue were the rights of women and worker rights in the US.
"middle class" and "working class" would be the best options, since the Industrial Revolution created thousands of new jobs, which put thousands more people to work.
<span> the Rivers are absolutely essential to understanding these two areas of culture. They both flood annually, providing some guarantee of grain and water, and provide much needed shipping lanes for the civilizations. Both were close to the mediterannean sea, persian gulf and red sea - ideal trading opportunities.
Egypt is essentially enclosed by desert and sea, making it a nation with natural boundaries. Mesopotamia is similar in that is is bordered by desert to the east and south, mountains to the north and sea to the west.
Both are quite literally "Cradles of civilization".</span>
Answer:
I think it all of the above
