@thread
Unless you have time on your hands, or boundless curiosity, don't read this link.
https://www.britannica.com/topic/eclipse/Assyrian
I'm only posting it so I can return to it without googling. If you pull the scroll bar to very nearly the end it is making a point about tiny but cumulative changes in day length and moon orbit which means some computed ancient solar/lunar eclipses can be mis-timed by hours, thus putting predicted ground track thousands of miles out. Cloverjo's link is from NASA and has a column labeled "delta T(seconds)", which I was initially clueless about but could well be just such a correction factor.