Answer:
Uncle Ben originally told it to Peter Parker. As it became Spiderman's phrase in time of need.
Typically it was the Appalachian mountains that served as such a boundary, given the fact that they were so large, and also given the fact that people had little-to-no incentive to move beyond them anyway.
Answer:
I believe it is presidential Democracy due to the fact the citizens elect the ruler/president.
Explanation:
To keep out enemies from intruding