The answer is : king Jehoash
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Sheppard's efforts contributed to the contemporary debate on European colonialism<span> and imperialism in the region, particularly amongst those of the African American community.</span>[2]<span> However, it has been noted that he traditionally received little attention in literature on the subject.</span><span>[3]</span>
It restricted immigration to the us.
Columbus claimed to have found a route to the West Indies (what he was looking for). He belived his claim until his death. However, it was later discovered that he had in fact found the Americas.