The Story of Knock began on Thursday evening of the 21st August, 1879, Our Lady, St. Joseph and St. John the Evangelist appeared at the south gable of the church at Knock, County Mayo, Ireland.
Beside them and a little to their left was an altar with a cross and the figure of a lamb, around which angels hovered.
There were fifteen official witnesses to the apparition – young and old – who watched and prayed for two hours in the pouring rain.
Two Commissions of Enquiry, in 1879 and 1936, accepted their testimony as trustworthy and satisfactory.
Today, Knock ranks among the world’s major Marian Shrines.