19th-century British chemists sold carob pods to singers. Chewing on carob pods helped singers maintain healthy vocal cords and soothe and cleanse their throat.
Carob was valued as a cheaper substitute for cocoa, as it came from the Mediterranean rather than all the way from South America. In the great cocoa shortage of 1887 demand for carob soared. Fleets of ships were sent to Greece and neighbouring countries to fill their holds with the now increasingly valuable commodity. Demand was so high that corsairs from Algiers set out to intercept the ships and steal their cargo, which they sold in Spain.
These were the first Pirates of the Carob Bean.