On August 21 1879 it is claimed that Our Lady appeared in a little Mayo village. Over one million people now visit Knock each year.
During the course of an average year, more than one million people come to visit a tiny village in the west of Ireland. They come with their rosary beads and prayer books day after day, week after week to pray at the little church on the hill.
Fifteen people gave evidence at a sworn inquiry, to the events at Knock. A dramatic reconstruction features the evidence of a young woman called Mary Byrne. She describes what happened on the night of the apparition. News quickly spread of the event and within weeks crowds were visiting the church at Knock.
'A Light from the West' was made by Radharc and produced by Father Joe Dunn. The film, narrated by Dermod MacCarthy, was first broadcast on 24 July 1979.