question: Where can an early non-Christian reference be found to the Crucifixion ?
answer: Mara Bar-Serapion 's letter to his son
turker_answer: An early non-Christian reference can be found to the Crucifixion in Mara Bar-Serapion 's letter to his son .
rule-based: An early non-Christian reference can be found to the Crucifixion in Mara Bar-Serapion 's letter to his son .