<Tr> <Th> Term length </Th> <Td> Four years renewable once </Td> </Tr> <Tr> <Th> Constituting instrument </Th> <Td> Constitution of Nigeria </Td> </Tr> <Tr> <Th> Formation </Th> <Td> October 1, 1963; 54 years ago (1963 - 10 - 01) </Td> </Tr> <Tr> <Th> First holder </Th> <Td> Nnamdi Azikiwe October 1, 1963 </Td> </Tr>

The tenure of office for the president under the 1999 nigeria constitution