Conversation so far:
What was Tambo's biggest honour?
In late 2005, ANC politicians announced plans to rename Johannesburg International Airport after him.
When was the airport officially renamed?
The proposal was accepted and the renaming ceremony occurred on 27 October 2006.
Did he have any other notable honours?
There is a bust of O.R.
Tambo at the Albert Road Recreation Ground, Muswell Hill, outside the Alexandra Park School.

Question: When did the bust take place?
Self-contained rewrite: When was the bust of Tambo at the Albert Road Recreation Ground in Muswell Hill made?