Conversation so far:
What was Oliver Tambo's biggest honour?
Oliver Tambo was a South African anti-apartheid politician and revolutionary who served as President of the African National Congress from 1967 to 1991.
When was the Johannesburg International Airport airport officially renamed after Oliver Tambo?
The proposal was accepted and the renaming ceremony occurred on 27 October 2006.

Question: Did he have any other notable honours?
Self-contained rewrite: Did Oliver Tambo have any other notable honours besides the renaming of an airport?