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 (-5[1])Railroad,” whose construction began after the Treaty of Petrópolis granted a country a territory rich in this resource, Acre (“AH-kree”). Julio César Arana used “boys of trust” to torture workers producing this (10[2])resource, (10[1])resulting (10[1])in the Putumayo genocide. The “Island of Innocence” was built for an artificial city established to secure this resource, Fordlândia. (10[2])For 10 points, the growth of Manaus (10[1])resulted from its export of what resource extracted from trees in the Amazon? ■END■ (10[1])