On March 9, a performance of Diablo Taiko Drummers created anticipation for the official unveiling of a sculpture -- made from 10,000 hand-folded origami cranes -- celebrating the 40th anniversary of Concord's Sister City relationship with Kitakami, Japan, and as a message of support for the victims of the massive earthquake and tsunami three years ago in Japan. Members of the community folded the cranes during a vigil at Todos Santos Plaza in March 2011, organized by the Concord Ambassadors, a nonprofit organization that supports the Sister City program. The goal was to create 1,001 cranes -- a symbol of hope for a full recovery -- but residents continued to fold cranes, some decorated with messages of hope, for weeks until they totaled more than 10,000. In celebration of a visit by a delegation from Kitakami, Japan, to the city in October, artist Sean Olson was commissioned to create the sculpture of the cranes. Brenden Theatres donated space in the lobby of their Concord theater where the sculpture will remain on display through the Sister City visit.