Acts of Thaddeus

The Acts of Thaddeus (Greek: Πραξεὶ̀ς τοῦ Θαδδαίου[1]) is a Greek document written between 544 and 944 CE which purports to describe correspondence between King Abgar V of Edessa and Jesus, which results in Jesus' disciple Thaddeus going to Edessa.

[8] Mirkovic notes that it is typically dated after the public appearance of the Image of Edessa in 544, and considers the iconoclasm controversy of the eighth century as the most probably context.

[9] Writers frequently confuse the Greek[10] Acts of Thaddeus with the Syriac Doctrine of Addai.

[5][a] It is generally agreed to be a later development of the tradition described in the Legend of Abgar told by Eusebius.

[13] The Acts of Thaddeus is often studied by those seeking to associate the Image of Edessa with the Shroud of Turin; Nicolotti considers their interpretations quite biased.