Inside the 1600s, European travellers noticed that East African folks smoked it using coconut-centered water pipes (Comoros) and antler-based mostly pipes in Madagascar. A Portuguese account within the 1580s studies the usage of ‘bangue’ in the region, which is thought to relate to your regional time period for cannabis – https://tanzania-cannabis66666.wikibriefing.com/3679007/what_does_zanzibar_cannabis_mean