Wikipedia: Saint Demetrius (or Demetrios) of Thessaloniki (Greek: Άγιος Δημήτριος της Θεσσαλονίκης) was a Christian martyr who is said to have lived in the 4th century. He is also referred to as "the Megalomartyr" by the Greeks. The origins of his cult are obscure; the first evidence of its existence comes about 175 years after his martyrdom, and most modern scholars do not believe there was in fact a history. more...