Enslaved Chinese workers who extracted this resource were freed by a figure nicknamed the “Red Prince” during a war for this resource. William Gibbs became the richest commoner in England after engaging in the trade of this resource. Everett Waring unsuccessfully defended abused workers in a trial concerning their extraction of this resource on (*) Navassa Island. A dispute over this resource motivated four South American countries to fight against Spain in the Chincha Islands War. (10[1])An 1856 act enabled (10[1])American citizens to take possession of unclaimed islands (10[1])containing this resource. (10[1])For 10 points, name this nitrogen and phosphate rich substance made from bird excrement that was often used as fertilizer. ■END■