Final answer:
The building of the Panama Canal encouraged American expansionism through improved trade routes, geopolitical advantage, and the showcase of American engineering expertise.
Step-by-step explanation:
The building of the Panama Canal encouraged American expansionism in several ways. Firstly, it provided a shorter and more efficient trade route between the Atlantic and Pacific Oceans, allowing American ships to move quickly between the two coasts. This increased trade opportunities and boosted the American economy. Secondly, the control over the Panama Canal gave the United States a significant geopolitical advantage in the Western Hemisphere, allowing them to exert influence and project power in the region. Lastly, the construction of the canal showcased American engineering expertise and technological advancements, solidifying America's reputation as a global power.
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