It is technically false that the Frontier ended when the open land was gone, since the open land was never "gone" just either taken up by private owners.
The Supreme Court case of Gibbons vs. Ogden was about interstate commerce, which is trade between states. (SCOTUS ruled that the federal government had the power to regulate interstate commerce, but that doesn't really matter).
Basically, "interstate" means "trade between states, while "intrastate" means trade within the boundaries of a state.
Answer:A government is an institution through which leaders exercise power to make and enforce laws. A government's basic functions are providing leadership, maintaining order, providing public services, providing national security, providing economic security, and providing economic assistance.
Explanation:
<span>US gained territory in the Pacific Ocean.
The Spanish-American War is the beginning of the imperial era in US history gaining their first territories from the war.
The US gained Puerto Rico, Guam, and the Philippines from the Spanish-American War and soon after completed the annexation of Hawaii. With colonies in the Pacific and trade connections growing in Asia, the US needed a quick way to move resources and ships from the East coast to these new areas. The canal through Panama made the naval commute shorter and faster as well as safer.</span><span />
