Question: The 1969 Libyan coup d'etat was led by a Libyan revolutionary, politician, ad political theorist who governed Libya as Revolutionary Chairman from 1969 to what year?
Sentence (from "Muammar Gaddafi"): Muammar Mohammed Abu Minyar Gaddafi ( ;    ;  1942 20 October 2011), commonly known as Colonel Gaddafi, was a Libyan revolutionary, politician, and political theorist.
Relevant evidence: Yes