Italy · 8th Century
Lanciano
Around the year 750 AD, a Basilian monk in Lanciano, Italy—tormented by doubts about whether the bread and wine truly become Christ's Body and Blood—reportedly witnessed an extraordinary event during Mass. According to the traditional account, as he spoke the words of consecration over the Host and chalice, the bread appeared to transform into flesh and the wine into blood before his eyes and the eyes of witnesses. Trembling with awe, he is said to have proclaimed: "O fortunate witnesses to whom the Blessed God, to confound my disbelief, has wished to reveal Himself!"
About this miracle
What makes Lanciano unique among Eucharistic miracles is that the Flesh and Blood have remained preserved for roughly twelve centuries without any conservation treatment whatsoever. The Flesh is intact, elastic, and fresh; the Blood has coagulated into five globules of varying sizes. Both are visible today in the Church of San Francesco, maintained under the care of Conventual Franciscan Friars since 1252.
In 1970-71, at the request of the Archbishop of Lanciano, the relics underwent rigorous scientific investigation by Professor Odoardo Linoli (Professor of Anatomy and Pathological Histology, Chemistry, Clinical Microscopy at the University of Siena) and Professor Ruggero Bertelli of the University of Siena. Published in peer-reviewed journals and indexed in PubMed, their findings were extraordinary: (1) The Flesh is authentic human cardiac (heart) tissue; (2) The Blood is real human blood, type AB—the same blood type found on the Shroud of Turin; (3) Both the Flesh and Blood show the same blood type and protein composition, proving they came from the same person; (4) Despite being over 1,200 years old, the tissue shows zero signs of preservation treatment and appears remarkably fresh—scientifically impossible for organic matter.
Modern Eucharistic miracles in Buenos Aires (1996), Sokółka (2008), Legnica (2013), and Tixtla (2006) have reported similar findings: all report cardiac tissue with signs of agony, and some report blood type AB. For believers, this pattern across centuries and continents serves as a sign consistent with the Catholic teaching on Christ's Real Presence in the Eucharist.
Note: Claims of World Health Organization (WHO) verification have been thoroughly debunked as fraudulent. However, the original 1970-71 Linoli study remains scientifically valid and properly peer-reviewed. The miracle has been venerated continuously for over 1,200 years, with the Church permitting and encouraging this devotion as consistent with Catholic teaching on the Eucharist.