Rialto Bridge and waters of the Grand Canal in Venice bathed in crimson to draw attention to the discrimination that Christians like Asia Bibi suffer in many parts of the world.

There was a focus on the post-war years when there were appeals for the Congo, Biafra and East Pakistan.

According to Dublin diocesan archivist, Noelle Dowling, some of the material on display on Friday night includes photographs and letters of thanks and appreciation from Vietnam, which suffered devastation during 20 years of war from 1955 until 1975.