Assertion: epistle | /r/AtLocation | the muratorian fragment
Facets:
Source sentences:
text: The epistle was included in the Marcion canon and the Muratorian fragment; it was mentioned by name by Irenaeus, and quoted by Ignatius, Justin, and Polycarp.
text: One piece of evidence for the authenticity of the epistle is that it was included in Marcion's canon and the Muratorian fragment.