D . Article I Section 8 in the Constitution gives them the power to do so
One of the situations that Roosevelt inherited upon taking office was governance of the Philippines, an island nation in Asia. The most spectacular of Roosevelt's foreign policy initiatives was the establishment of the Panama Canal.
In the Old Testament there was merchants
I do believe the early Egyptians, being as smart as they where used a interesting method of a sundial. It caught the suns shadow and they where able to use it to tell the time.
The five-year plans do not certainly justify the tremendous cost borne by the soviet people. This is because the plan only brought glory to Stalin but did not improve the welfare of the people as is reflected in the economic gap between the Soviets and other western democracies