The school was established to train teachers and began with 17 pupils. It was originally planned to be sited in Accra because the British Government had, by 1870, decided to move the capital of the Gold Coast from Cape Coast to Accra. However, local agitation and the urgent need to put the idea into practice after eleven years of debate pressurised the government to allow the school to begin functioning, but on the understanding that it would later be moved to Accra, though no such move ever took place.