In 1986 a 60th anniversary was held to mark this event.
In 1494, a ceremony was held to mark the completion of the city walls.
A special Mass was also held to mark the occasion.
It is generally held on November 29 each year to mark the anniversary of resolution 181.
A celebration was held in 2001 to mark the 5000th performance.
In 2009 celebrations were held to mark the 110th anniversary of the university's foundation.
A community celebration was held to mark the completion of the upgrade.
An open day was held to mark the reopening in May 2003.
A two day celebration was held in Delta to mark the occasion.
A ceremony was held on December 3 to mark the end of the project.