Original: Knock ( , meaning The Hill â '' but now more generally known in Irish as Cnoc Mhuire , '' Hill of ( the Virgin ) Mary '' ) is a small town in County Mayo , Ireland whose notability derives from the Knock Shrine where it is claimed the Virgin Mary , together with St Joseph and St John the Evangelist , appeared in 1879 .
Simplified: Knock ( An Cnoc in Irish , meaning The Hill -- but now more generally known in Irish as Cnoc Mhuire , '' Hill of ( the Virgin ) Mary '' ) is a small town in County Mayo in Ireland . Knock 's notability comes from the Apparition of 1879 .