The traditional story of the conversion of the king and the nation is primarily based on the fifth-century Armenian history attributed to
Agathangelos. It tells of
Gregory the Illuminator, the son of Anak, who was brought up as a Christian and, feeling guilt for his own father's sin, joined the Armenian army and worked as a secretary to the king. Christianity in Armenia had a strong footing by the end of the 3rd century, but the nation by and large still followed
Zoroastrianism. Tiridates was no exception as he too worshiped various ancient gods. During a Zoroastrian religious ceremony Tiridates ordered Gregory to place a flower wreath at the foot of the statue of the goddess
Anahit in Eriza. Gregory refused, proclaiming his Christian faith. This act infuriated the king. His fury was only exacerbated when several individuals declared that Gregory was in fact, the son of Anak, the traitor who had killed Tiridates's father. Gregory was tortured and finally thrown in
Khor Virap, a deep underground dungeon. During the years of Gregory's imprisonment, a group of virgin nuns, led by
Gayane, came to Armenia as they fled the Roman persecution of their Christian faith. Tiridates heard about the group and the legendary beauty of one of its members,
Rhipsime. He brought them to the palace and demanded to marry the beautiful virgin; she refused. The king had the whole group tortured and killed. After this event, he fell ill and according to legend, adopted the behavior of a wild boar, aimlessly wandering around in the forest. Khosrovidukht had a dream wherein Gregory was still alive in the dungeon, and he was the only one able to cure the king. At this point it had been 13 years since his imprisonment, and the odds of him being alive were slim. They retrieved him, and, despite being incredibly malnourished, he was still alive. He was kept alive by a kind-hearted woman who threw a loaf of bread down in Khor Virap every day for him. to give him back his human appearance (detail) by
Francesco Fracanzano, 1635 Tiridates was brought to Gregory and was miraculously cured of his illness. Persuaded by the power of the cure, the king immediately proclaimed Christianity the official state religion. Thus, Armenia became a nominally Christian kingdom and the first state to officially adopt Christianity. Tiridates appointed Gregory as
Catholicos of the
Armenian Apostolic Church. The conversion to Christianity proved to be a pivotal event in Armenian history. According to the scholar of Zoroastrianism
Mary Boyce, it seems that the Christianisation of Armenia by the Arsacids of Armenia was partly in defiance of the Sassanids. ==Rest of reign==