Answer:
I think it was a threat but not one of the main ones
The Silk Road was an ancient road that stretched through Asia and the Middle East, where fine goods were traded from one person to another. It opened during the Han dynasty (130 bce), but was closed in 1453 ce, when the Ottoman empire boycotted trade with the west and shut down the routes.
The fifteenth amendment. It gave ALL citizens the right to vote
The United States has a tri-part GOVERNMENT system. This is seen in the three branches of government: the judicial branch, the legislative branch, and the executive branch.