 Ico cigwa cerekana ko mu bantu bavutse mu myaka ya mbere ya za 1900, abagabo: Bashobora kwiyumvira kunywa inzoga barenga incuro kabiri abagore incuro 2.2 Bagaragaza impungenge zo kugira ibibazo biturutse ku kunywa cane, bari benshi incuro gatatu ugereranije nabagore. 