A mosaic and the remains of a building uncovered recently in excavations on the Megiddo prison grounds may belong to the earliest church in the world, according to a preliminary examination by the Israel Antiquities Authority.

One of the most dramatic finds suggests that, instead of an altar, a simple table stood in the center of the church, at which a sacred meal was held to commemorate the Last Supper.

Photographs of three Greek inscriptions in the mosaic were sent to Hebrew University expert Professor Leah Di Segni, who told Haaretz on Sunday that the use of the term "table" in one of them instead of the word "altar" might lead to a breakthrough in the study of ancient Christianity. It is commonly believed that church rituals based on the Last Supper took place around an altar...