in addition to his appointments as the albert schweitzer professor in the humanities, professor in political science, african studies, philosophy, interpretation and culture and the director of the institute of global cultural studies (igcs), mazrui also held three concurrent faculty appointments as albert luthuli professor-at-large in the humanities and development studies at the university of jos in nigeria, andrew d. white professor-at-large emeritus and senior scholar in africana studies at cornell university, ithaca, new york and chancellor of the jomo kenyatta university of agriculture and technology, nairobi, kenya. in 1999, mazrui retired as the inaugural walter rodney professor at the university of guyana, georgetown, guyana. mazrui has also been a visiting scholar at stanford university, the university of chicago, colgate university, mcgill university, national university of singapore, oxford university, harvard university, bridgewater state college, ohio state university, and at other institutions in cairo, australia, leeds, nairobi, teheran, denver, london, baghdad, and sussex, amongst others. in 2005, ali mazrui was selected as the 73rd topmost intellectual person in the world on the list of top 100 public intellectuals by "prospect magazine" (uk) and "foreign policy" (united states).