IST Opened in 1963
The concept for IST began taking shape in 1961 as the result of an increased international outlook and an influx of international staff and their families in Dar es Salaam following Tanganyika's (later to join with Zanzibar to form the United Republic of Tanzania) independence. In 1962, a few parents began exploring the possibility of setting up an international school in Dar es Salaam. This group of parents, together with the assistance of the then Geneva-based International Schools Association, found IST in 1963.
When IST opened its doors on what was then called Cameron Road (now United Nations Road) in September of that year, it had 214 elementary-aged pupils, nine full-time and one part-time teacher, mostly recruited from within Tanzania. At the time, it was also the first international school in this half of Africa. By the end of the year, the school community had grown to 305 pupils and 15 full-time teachers.