It has been staged almost every two years since 1970.
A number of amateur companies have staged the piece since the early 1990s.
The tournament has been staged since 1979 with a couple of short breaks.
It has been staged under various formats almost every year since the first public competition in 1959.
It was the first major show staged in Pittsburgh for the comic community since the 70's.
It is staged annually since 2000 and usually lasts for 4 days.
It is staged annually since 2011 and lasts three days.
Annual performances of the ballet have been staged there since 1952.
The work has been staged several times since 1994, and its musical component remains open to interpretation.
Apple has staged a remarkable comeback since Jobs's return in 1997.