Final answer:
The end of World War II had the greatest impact on decolonization in Africa.
Explanation:
The event that provided the greatest push to decolonize Africa was the end of World War II. After World War II, many European countries were economically weakened, prompting the establishment of the United Nations with the objective of overseeing decolonization. This led to a wave of independence movements across Africa in the following decades, ultimately resulting in the end of European colonialism in the continent.
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