There were several different causes that resulted in American becoming an industrial nation. One of the most significant ones was the Industrial Revolution. This time period resulted in the creation of new machines and new means of transportation that helped in mass producing goods for US citizens. The development of textile mills and the spinning jenny resulted in the increased production of goods in American society. This was just the beginning, as new concepts, inventions, and machines would help to make America fully industrialized, leaving behind the era of a nation based on farming.
Historians are researchers of the past or people who understand the history of people. With this field, they must possess qualities such as being unbiased, patient, efficient reader, has a knack for logic and critical thinking and reasoning, disciplined, open-minded, resourceful, with good analytical ability, good reasoning skills and problem solving!
The Qin fled south when they were defeated by the Huns.