You can't really discount miracles without a reason, the logic is circular. We don't believe in historical claims in miracles because we don't have evidence for miracles. We don't have evidence for miracles because we dismiss claims of miracles out of hand. They should be held to the same standard as any other historical claim.

Most historical events of importance are documented in multiple sources that have certain conflicting details, but if they agree on certain claims, those claims have weight.