Every post on this blog has had its timestamp doctored. Anyone who has worked with the web’s most commonly used creator, WordPress, knows that getting your blog posts to show in reverse chronological order is like solving the riddle of the Sphinx or the conundrum of how to square the circle. I won’t say it can’t be done, but… well, it’s hard. So I solved that problem by entering, for every post on this site, a date more distant in the past than the previous. So none of the dates listed for the written snippets on this site are accurate. Someone could probably find out the actual date every post here was laid down, but it would be difficult.
That’s a microcosm of the difficulty in settling with assurance on dates from the distant past. It’s hard, and can’t be done with great surety. Where certainty exists is, in many cases, not really certainty, but the brute force of scholars all reinforcing one another on a date they are all committed to, have put in their lecture notes, and have fastened into their system. It is accepted because, well, um, because everybody accepts it.