The Didache is, in all probability, the oldest surviving piece of non-canonical literature that we have access to today. The Didache was highly regarded by many early Christian authors and theologians. Athanasius of Alexandria (Born circa 296–298, Died May 2, 373) recommended it to converts, and it had a great infuence on the Apostolic Constitutions (circa 375 to 380 AD). Before the New Testament canon was formally settled in 692, a number of Biblical canons included the Didache; John of Damascus (Born circa 675 or 676, Died December 4, 749) was also a noted supporter.