In simple words, The concpet of Primitive society, relates to the lexicon of modern anthropologists, each of the many cultures distinguished by characteristics which may involve absence of writing system, isolation, limited population, fairly simple social structures and technologies, and a relatively slow pace of socio-cultural transition.
The prime minister of Ghana was the head of government of Ghana from 1957 to 1960 and again from 1969 to 1972. Wikipedia First holder: Kwame Nkrumah Abolished: 13 January 1972 Final holder: Kofi Abrefa Busia