Answer:
Ok so the answer is 5, 2 and 3.
Explanation:
The explorers did not find a waterway from Central America to the Pacific. But they did sponsor Columbus, who "discovered" the brand new settlement of Hispaniola. Through quickly conquering territory along the Americas, Spain also became the first to locate those rivers.
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Generally speaking, from the 1830s on, people hoping to settle in the Northwest "B-traveled along the Oregon Trail," since this had become a well-established route.
I believe the leader is Eugene Debs.