International School of Zanzibar International School of Zanzibar The International School of Zanzibar (founded in 1988) is a private international school located on the island of Zanzibar, Tanzania. It hosts students from over 20 countries, ages 2–16, from pre-kindergarten, to Year 12. The official language, and language of instruction of this school, is English. The academic program is based on the Cambridge International General Certificate of Secondary Education, the IGCSE. Currently, there are about 200 students enrolled in the school, from many different countries. The International School of Zanzibar (ISZ) was founded by parents from foreign countries as a play area for their children.
History of Zanzibar other things, not to interfere with British interests in Zanzibar. This treaty made Zanzibar and Pemba a British protectorate (not colony), and the Caprivi Strip (in what is now Namibia) part of German South West Africa. British rule through a sultan (vizier) remained largely unchanged. The death of Hamad bin Thuwaini on 25 August 1896 saw the Khalid bin Bargash, eldest son of the second sultan, Barghash ibn Sa'id, take over the palace and declare himself the new ruler. This was contrary to the wishes of the British government, which favoured Hamoud bin Mohammed. This led to a showdown, later