I want to know the answer to the following question:
When was the Behistun inscription written?
All the background I'm provided with is that "Later inscriptions are comparatively brief, and typically simply copies of words and phrases from earlier ones, often with grammatical errors, which suggests that by the 4th century BC the transition from Old Persian to Middle Persian was already far advanced, but efforts were still being made to retain an "old" quality for official proclamations.". Is that enough to answer the question?
Answer: no