<span>B. During the period of Viking, Magyar, and Muslim invasions</span>
Answer:
It was the first big business that helped lead to the Second Industrial Revolution.
The completion of the first transcontinental railroad in 1869 encouraged settlement of the American west by proving easier travel and it took less time.
Barbour and wright intimate that jefferson included in the declaration of independence a laundry list of alleged offenses that king george iii committed against the american colonists in order to convince their fellow colonists that they were doing the right thing in breaking from English ruling.
He stated that it is the duty of mankind to break free from a government when it has became a tyranny and don't guarantee human rights anymore. So, he included the list of alleged offenses in order to prove how the English government has become a tyranny against the colonies.