Scholars tend to be cautious when making claims to the point where they are not allowing the evidence to see the light of day to the extent possible. Biblical archaeology has logged many thousands of finds that give us confidence in the historicity of the Bible, the trustworthiness of the Scriptures. Let's not overplay our hand on what biblical archaeology can do, but let's not underplay our hand either.
Nomina Sacra (singular: nomen sacrum from Latin sacred name): In early Christian scribal practices, there was the abbreviation of several frequently occurring divine names or titles within the Greek manuscripts.
It is by means of the art and science of paleography that we can arrive at an approximate date when the manuscript was written. Paleographers could be viewed as manuscript detectives; through their knowledge of the writing of ancient texts, the forms, and styles, we get a reasonably close idea of when a manuscript was copied.