Can carbon dating be trusted
Similar kinds of problems are seen in the case of potassium-argon dating, which is considered one of the most reliable methods. Andrew Snelling, a geologist, points out several of these problems with potassium-argon, as seen in Table 7.
We compare calcined bone ages with charcoal and/or collagen dates from individual features or discrete cultural strata in 10 Washington, Oregon, Idaho, and British Columbia sites dating between 9000 and 100 B. Resulting radiocarbon age estimates based on calcined bone closely match those based on charcoal and/or collagen in nearly all cases.
We obtained calcined bone dates from three additional Holocene-aged sites that had not previously produced accurate results, obtaining findings consistent with estimates based on cross dating.
Preserving well where all other organic media of cultural origin are lost or unreliable, calcined bone holds promise for dating sites in conifer forests and other acidic soil settings, and can allow researchers to refine archaeological sequences that have long defied accurate chronometric analysis.
Scholars believe it was written around AD 117, or about 25 years after John wrote the original.
Princeton scholar, Bruce Metzger explained the significance of this find.