Chapel of Our Lady of the Miraculous Medal

Catherine Labouré, on the 18th of July 1830, stated that she woke up after hearing the voice of a child calling her to a chapel at her convent. There, the Virgin Mary said to her, "Virgin Mary appeared to her and said: "God wishes to charge you with a mission... You will be contradicted, but do not fear, you will have grace... Tell your spiritual director all that passes within you... Times are evil. Sorrows will come upon France... The whole world will be upset by miseries of every kind..." 

On November 27, 1830, Catherine reported that the Virgin Mary returned during her evening meditations. Mary displayed herself inside an oval frame, standing upon a globe. She wore many rings set with gems that shone rays of light over the globe. Reportedly, Mary said to her that the rays symbolize the graces she is "shedding upon those who ask for them", and that the gems which did not shed light "are the graces for which souls forget to ask". Around the margin of the frame appeared the words "Ô Marie, conçue sans péché, priez pour nous qui avons recours à vous" ("O Mary, conceived without sin, pray for us who have recourse to thee") As she watched, the frame had seemed to rotate, revealing a circle surrounded with 12 stars, a large letter 'M' on a cross, and the stylised Sacred Heart of Jesus and the Immaculate Heart of Mary pierced with a sword. Catherine heard the Virgin Mary ask her to "have a Medal struck after this model" and to take these images to her confessor, and that "All who wear them will receive great graces...". 

After 2 years of monitoring her behaviour and investigations, her priest took the information to the Arch-Bishop of Paris, and the medal was approved and went into manufacturing.