Parts of present-day Arizona, California, New Mexico, Texas, Colorado, Nevada, and Utah.
Answer:
By establishing a national market, establishing a cattle sector on the Plains, and allowing certain people to become extremely wealthy through railroad investment, railroad expansion had an impact on the US economy.
Explanation:
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Temujin, later dubbed Chinggis Khan, succeeded in bringing the Mongols together, unifying them in the Great Mongol Nation by 1206.
• In order to hold his alliance together, Chinggis Khan launched a series of military campaigns against the settled agricultural societies of Eurasia over the half century after 1209.
• Through this Mongol world war, Chinggis Khan and his successors constructed an empire that included China, Korea, Central Asia, Russia, much of the Islamic Middle East, and parts of Eastern Europe.
It proved that Spain was not going to give up the territory in the west
The U.S because they stole land from the Native Americans in a violent and cold way and forced them to go down the trail of tears.