Acts of Thomas is an early 3rd-century text, one of the New Testament apocrypha within the Acts of the Apostles subgenre. References to the work by Epiphanius of Salamis show that it was in circulation in the 4th century. The complete versions that survive are Syriac and Greek. There are many surviving fragments of the text. Scholars detect from the Greek that its original was written in Syriac, which places the Acts of Thomas in Edessa, likely authored before 240 AD. The surviving Syriac manuscripts, however, have been edited to purge them of the most unorthodox overtly Encratite passages, so that the Greek versions reflect the earlier tradition. Fragments of four other cycles of romances around the figure of the apostle Thomas survive, but this is the only complete one. It should not be confused with the early "sayings" Gospel of Thomas. "Like other apocryphal acts combining popular legend and religious propaganda, the work attempts to entertain and instruct. In addition to narratives of Thomas' adventures, its poetic and liturgical elements provide important evidence for early Syrian Christian traditions," according to the Anchor Bible Dictionary. Acts of Thomas is a series of episodic Acts (Latin passio) that occurred during the evangelistic mission of Judas Thomas ("Judas the Twin") to Northwest India, specifically the Persian Kingdom and the Indo-Parthian Kingdom. It ends with his martyrdom: he dies pierced with spears, having earned the ire of the monarch Misdaeus, thought to be Abdagases I, a viceroy of the Gondophares in Sistan, modern day southern Afghanistan, because of his conversion of Misdaeus' wives and a relative, Charisius. He was imprisoned while converting Indian followers won through the performing of miracles. Embedded in the Acts of Thomas at different places according to differing manuscript traditions is a Syriac hymn, The Hymn of the Pearl, (or Hymn of the Soul), a poem that gained a great deal of popularity in mainstream Christian circles. The Hymn is older than the Acts into which it has been inserted, and is worth appreciating on its own. The text is interrupted with the poetry of another hymn, the one that begins "Come, thou holy name of the Christ that is above every name" (2.27), a theme that was taken up in Catholic Christianity in the 13th century as the Holy Name. Mainstream Christian tradition rejects the Acts of Thomas as pseudepigraphical and apocryphal, and for its part, the Roman Catholic Church declared Acts as heretical at the Council of Trent. See also Leucius Charinus. Thomas is often referred to by his name Judas (his full name is Thomas Judas Didymus), since both Thomas and Didymus just mean twin, and several scholars believe that twin is just a description, and not intended as a name. The manuscripts end "The acts of Judas Thomas the apostle are completed, which he did in India, fulfilling the commandment of him that sent him. Unto whom be glory, world without end. Amen.". Source: Wikipedia (en)