Answer:
The Panama Canal is a constructed waterway that connects the Atlantic and Pacific oceans across the Isthmus of Panama. It is owned and administered by Panama, and it is 40 miles long from shoreline to shoreline. Ships can cross going in either direction, and it takes about 10 hours to get from one side to the other.
The best historical skill is "though the eyes" of Roman Empire. In other words how did the Roman people react to brutal violence of hurting one another in battles of parties-of 2 sides.
Using this historical skill the historian would interpret the reasons as to why the Roman Empire could allow battle fights. In the eyes of Roman Empire:fighting for power, win, justice, challenge for the Empire -and prosperity.
Its Marxist government posed a threat to the almost 1,000 Americans on the island.
Because it was despised by the President and the Southerner the bureau expired in 1872