Read the passage from Sugar Changed the World.The end of slavery was a great step for human rights. But what did it mean on the sugar plantations—which had depended on extremely cheap labor to keep up with the twenty-four-hour cycle from harvest to mill? In 1836, the same John Gladstone whose sugar estate had exhibited the chained body of the slave leader Quamina wrote to a shipping company. Gladstone asked it to provide a hundred workers (the slang name was "coolies") from India to labor on his