Famous Catholic Miracles

Around 700 AD, a Basilian monk in Lanciano, doubting the Real Presence, celebrated Mass when the bread and wine visibly transformed into flesh and blood. The flesh and blood have been preserved for over 1,300 years. In 1970–71, Professor Odoardo Linoli, a professor of anatomy and pathological histology, conducted a rigorous scientific analysis. His findings: the flesh is real human cardiac muscle tissue (myocardium); the blood is real human blood, type AB; the flesh and blood are of the same blood type; the proteins in the blood are in normal proportions; and there is no trace of any preservative. The World Health Organization confirmed his findings in 1973. The tissue shows no signs of decomposition after thirteen centuries.

On October 13, 1917, approximately 70,000 people gathered in the Cova da Iria — believers, skeptics, and journalists — having been told by the Fatima visionaries that a miracle would occur. At noon, after heavy rain, the clouds parted. Witnesses reported that the sun appeared to spin like a wheel of fire, change colors, and then plunge toward the earth in a zigzag motion before returning to its place. The ground and the clothes of the soaked crowd were instantly dry. The event was reported in secular newspapers, including the anti-clerical O Século, whose reporter Avelino de Almeida had gone to mock the pilgrims and instead filed an astonished eyewitness account.

The Catholic Church has documented hundreds of cases of saints whose bodies did not decay after death — a phenomenon called incorruptibility. Among the most famous: St. Bernadette of Lourdes (died 1879), whose body was exhumed three times and found perfectly preserved, with no embalming; St. Catherine of Siena (died 1380), whose head remains incorrupt in Siena; St. John Vianney (died 1859), whose body lies incorrupt in Ars, France; and St. Padre Pio (died 1968), whose body was found incorrupt when exhumed in 2008. Medical examiners have confirmed that the preservation cannot be explained by natural processes or embalming.

On the Feast of the Exaltation of the Holy Cross, 1224, St. Francis of Assisi received the stigmata — the five wounds of Christ — while praying on Mount La Verna. Witnesses, including Brother Leo who was present, described wounds in his hands, feet, and side that bled regularly and never healed. Francis bore the wounds for two years until his death in 1226. He was the first person in recorded history to receive the stigmata. Since Francis, over 300 cases of stigmata have been documented by the Church, including St. Padre Pio, who bore the wounds for fifty years.

Since the apparitions of 1858, over 7,000 miraculous healings have been reported at Lourdes. The Lourdes Medical Bureau — founded in 1882 and staffed by physicians of all faiths and none — has investigated these claims. To date, 70 healings have been officially certified as 'inexplicable in the current state of scientific knowledge.' Cases include the instantaneous healing of advanced tuberculosis, bone cancer, blindness, and paralysis. The most recent official miracle was certified in 2013: the healing of Sister Bernadette Moriau of a severe neurological condition.

The image of Our Lady of Guadalupe imprinted on Juan Diego's tilma (cloak) in 1531 has been the subject of intense scientific scrutiny. Findings: the image has no brushstrokes or underdrawing visible under infrared photography; the pigments used do not correspond to any known 16th-century paint; the fabric has no sizing (primer), yet the image adheres perfectly; the eyes of the Virgin contain a reflection of multiple figures consistent with what Juan Diego would have seen when he opened his cloak before the bishop; the image maintains a constant temperature of 98.6°F (human body temperature); and the fabric has not deteriorated in nearly 500 years despite being unprotected for the first 116 years.

In 1996, a consecrated Host that had been dropped on the floor was placed in water to dissolve, as is customary. Instead, it began to bleed. The Host was photographed and preserved. In 1999, samples were sent to Dr. Frederick Zugibe, a forensic pathologist and expert in cardiac pathology at Columbia University — who was not told the origin of the sample. His findings: the sample was human cardiac muscle tissue (myocardium) from the left ventricle; the tissue was alive at the time of the sample; the tissue showed signs of severe trauma consistent with torture; and the blood type was AB — the same as the Lanciano miracle and the Shroud of Turin.

Alphonse Ratisbonne was a wealthy, anti-Catholic French Jewish banker who visited Rome in 1842 as a skeptic. A Catholic friend bet him he could not wear the Miraculous Medal for two weeks — Ratisbonne accepted the wager contemptuously. On January 20, 1842, while waiting in the Church of Sant'Andrea delle Fratte, he was suddenly overwhelmed by a vision of the Virgin Mary exactly as she appears on the Miraculous Medal. He fell to his knees, was instantly converted, and within months was ordained a Catholic priest. The conversion was investigated by Church authorities and witnessed by multiple credible witnesses, including a Protestant baron.