On June 6, 1909, workers in the Culebra Cut of the Panama Canal packed dynamite into hand‑drilled holes under blistering tropical heat. Their task: carve a navigable channel through the continental divide.
The terrain was treacherous. Unstable slopes triggered massive landslides that buried equipment and workers without warning. Heat and friction could prematurely detonate explosives. Every blast was a gamble — yet their relentless labor reshaped global trade forever.
