native Americans resisted the efforts of the Europeans to gain more land and control during the colonial period, but they struggled to do so against a sea of problems, including new diseases, the slave trade, and an ever-growing European population.
The manufacturing industry is a really important sector in the United States as it helped build the middle class after the second World War. In the early 21st century accounted for 10% of corporate profits. Unfortunately the employment in this sector is estimated to decline in the coming years.
I think it's the telephone because it allows people to communicate better and customers or workers don't have to walk up to everyone and disturb them. You may elaborate more on this with your own opinion
President James Monroe wrote the Monroe doctrine because fear existed that the European powers might try to restore their postions in Latin America, which had in general already obtained their independence. The message that he was trying to get across : The United States were not to tolerate European Countries to make new colonies or interfere with the new independent countries; likewise, the United States would not get involved with conflicts between European Powers.
