Lanciano,The Heart and Blood of Jesus - the oldest documented Miracle of the Eucharist in the History of the Church Orvieto, 1263 Miracle of the Eucharist which brought about the Feast of Corpus Christi Siena, 1730 - God proves beyond doubt that Jesus is truly Present in the Eucharist we receive at every Mass Cascia, 1300's - The faith of a priest is restored after he is part of the Miracle