When did Professor Imoagene become a full professor?

Professor Imoagene became a full professor on October 1, 1976 at the University of Ibadan.

Context

The record notes that he “was promoted to the position of a Professor in the Department of Sociology with effect from 01 October, 1976”.

Note

This appears to refer to Late Professor Imoagene in the University of Ibadan bulletin, not Onoso Imoagene’s current academic title.