For this chain-of-thought reasoning and answer, what was the question?
To answer this question, we should know that: John is usually dated to AD 90 -- 110.
A: AD 90 -- 110
Q: John is usually dated to AD 90 -- 110. It arose in a Jewish Christian community in the process of breaking from the Jewish synagogue. Scholars believe that the text went through two to three redactions, or "editions", before reaching its current form.

Based on this passage, when was the bible book of john written?