The definition of political anthropology is the study of political systems as the basic structure of a society
Source: http://www.yourdictionary.com/political-anthropology
This is basically just from search btw! :
An average college student could expect atleast 5 (five) classes per semester
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