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 began after the Treaty of Petrópolis granted a country a territory rich in (-5[1])this resource, Acre (“AH-kree”). Julio César Arana used “boys of trust” (10[1])to torture workers producing this resource, resulting in the Putumayo genocide. (10[1])The “Island of Innocence” was built for an artificial city established to secure this resource, (10[1])Fordlândia. For 10 points, the growth of Manaus resulted from its export of what (10[1])resource extracted from trees in the Amazon? (10[1])■END■ (10[1])