On August 15, 1914, the SS Ancon made the first official transit of the Panama Canal — and the world barely noticed, because Europe had just gone to war. Behind the engineering marvel was something uglier: a segregation system the U.S. government built into the Canal Zone from the first shovel. How did the "Gold Roll" and "Silver Roll" turn a payroll into Jim Crow on foreign soil? Episode 10 of Crossroads of Empires centers the Black West Indian workers — roughly 150,000, mostly Jamaican and Barbadian — who actually dug the canal. We lay out the Gold/Silver caste system plainly: gold dollars, screened houses, and good hospitals for white Americans; poverty wages, crowded barracks, the deadliest work, and segregated fountains, schools, and graves for the "Silver" majority. We use the workers' own documented words from the 1963 firsthand accounts (Constantine Parkinson, Albert Banister), explain how the locks lifted the Ancon 85 feet over the mountains, and reckon with a death toll that fell overwhelmingly on the people the system was designed to erase. It was Jim Crow exported — and it lasted until the 1960s. Watch on YouTube: https://youtu.be/81gRz7h37fg