The answer is the Monroe Doctrine. This Doctrine was stated by the fifth President of the United States, James Monroe, on December 2, 1823, and became the foreign policy of the nation for many years.
The doctrine stated that:
●<em> The efforts of European nations to colonize land in North or South America, are considered as acts of aggression, requiring U.S. intervention</em>.
●<em> Any interference by European nations with states of North or South America would also be perceived as acts of aggression and would call for U.S. intervention</em>.
● <em>The United States would not interfere with existing European colonies</em>.
● <em>The United States would not get involved with the internal affairs of European nations</em>.
The railroad was able to aid others in communication, transportation, and products. An example is mail. People used trains to transport mail in order to communicate with others. Traveling was also cheaper and safer now with railroads since it was able to get people where they needed to be much more quickly. And finally products, manufacturers could send supplies to other places in a short amount of time much more easily.
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six different states including Missouri, Kansas, Nebraska, Wyoming, Idaho, and Oregon. Hope it helps
Although fictitious and mythical, the legend of Romulus and Remus suggests that the Romans are very prideful, brave, and clever, since Romulus and Remus were said to have been raised by a wolf mother.