"<span>New railroad lines across the Great Plains made it cheaper to ship cattle by rail" would be the best option, not only because of the reduced price, but because of the increased timing and efficiency. </span>
The movement that highly influenced the Constitution's framers was the 18th century philosophical and intellectual movement, Enlightenment. The movement presented several ideals such as the separation of church and state, liberty and constitutional government. From here, the framers of the Constitution took the idea that government was established only "by the consent of the governed". And thus, should be geared towards the best interests of its citizens.
If you are asking if the statement is true, then it is. Odoacer, whose father was a commander in Attila the Hun's army, sent a message to Constantinople after Romulus Augustulus was deposed that the Roman empire needed only one Emperor. He then proclaimed himself as Italy's representative. Odoacer felt that he reunited the Roman Empire and he became the last Western Roman empire's ruler.