The mission of Thaddaeus to king Abgar of Edessa, the correspondence between Christ and Abgar, and the picture of Christ which purports to have been taken for Abgar are very old traditions, first mentioned by Eusebius, Hist. Eccles. 1, 13. Whether these Acts formed the basis for these traditions cannot be decided. Tischendorf has published the Greek text from a codex Paris of the 11th century in his Acta Apostolorum Apocrypha (Lips. 1851), p. 261-265. (B. P.)