From the early stages of Christianity, belief in the virginity of Mary and the virgin conception of Jesus, as stated in the gospels, holy and supernatural, was used by detractors, both political and religious, as a topic for discussions, debates and writings, specifically aimed to challenge the divinity of Jesus and thus Christians and Christianity alike. In the 2nd century, as part of the earliest anti-Christian polemics, Celsus suggested that Jesus was the illegitimate son of a Roman soldier named Panthera. The views of Celsus drew responses from Origen, the Church Father in Alexandria, Egypt, who considered it a fabricated story. How far Celsus sourced his view from Jewish sources remains a subject of discussion.
Try to answer this question if possible (otherwise reply "unanswerable"): What century did Panthera become a Roman Soldier?
unanswerable