During the mid-nineteenth century, vast accumulations of bird guano on

Peru's offshore islands became one of the most lucrative fertilizer commodities in the global agricultural market, fueling intensive

British and European trade. The Peruvian government leveraged these massive natural deposits as collateral for international loans, establishing a state monopoly that temporarily transformed Lima into a center of immense fiscal wealth. However, the overreliance on a single export commodity created severe economic distortions, rampant political corruption, and crushing foreign debt obligations when European agriculture eventually pivoted toward synthetic fertilizers and mineral nitrates. Historians estimate that guano revenues accounted for up to 80 percent of Peruvian state income during peak extraction decades, leaving the national economy devastated when the deposits exhausted.
Why today: This historical reliance on volatile natural resource monopolies and export crutches directly illuminates modern Washington's scramble to manage domestic diesel export bans and crippling energy market shocks.