 The Hindus were known to be vegetarians and non-violent, never imposing their religion or culture in Africa.They prospered by offering a good trade, quality products and cash loans to the Zanzibar and other African community, but have traditionally kept their religion, social and cultural life as a private, personal matter.The first major change came to Tanzania with the arrival of Shia Islam (Ismaili), when Muslims and Omani Arabs began to compete with Indian Hindus, and when Muslims began a campaign of conversion.