Barnard, Leslie W. (4 de diciembre de 2008). Justin Martyr: His Life and Thought. Cambridge University Press. pp. 23. «The date of the Dialogue cannot be determined with accuracy. It is certainly later than the First Apology, which we have dated c. A.D. 151-5, which it quotes. Many scholars are of the opinion that a date c. A.D. 160 best fits the background of the Dialogue».