Tossup

The steamboat Liberal transported this resource for a company that imprisoned Walter Hardenburg, who criticized that company’s production of this resource as a “devil’s paradise.” Attempts to improve the efficiency of transporting this resource led to the discovery of the Fitzcarrald isthmus. This resource was transported via the “Devil’s Railroad,” whose construction (10[1])began after the Treaty of Petrópolis granted a country a territory rich in this resource, Acre (10[1])(“AH-kree”). Julio César Arana used “boys of trust” to torture workers producing this resource, (10[1]-5[1])resulting in the Putumayo genocide. The “Island of Innocence” was built for an artificial city established to secure this resource, Fordlândia. For 10 points, the growth of Manaus (-5[1])resulted (10[1])from its export of what resource extracted from trees in the Amazon? ■END■ (0[1])

ANSWER: rubber [or caucho; accept India rubber; accept latex; accept Amazonian rubber]
<AK, World History>
= Average correct buzz position

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