mbg

If I remember correctly, Brandon said somewhere that one Rosharan year is roughly equivalent to 1.1 Earth years, which would make Shallan about 19 and Jasnah around 37. Would that be right? I'm not a big math person, but I just guessed that you multiply a person's given age in the book by 1.1.

That would also make it a ~400 day year(not 500) As for second thing I think we should avoid "age conversions". The characters are only as old as the writer makes them, not as they would look/perceived in RL.

Anywho, I was thinking that Roshar's seasons couldn't be based on the planet's axial tilt or whatever if Shinovar is stable; otherwise Shinovar somehow defies those planetary factors and remains remarkably stable, at least, I think so. So that leaves the question, what is the cause of Roshar's seasons? Specifically, since I'm guessing it's the highstorms, what do they change that causes seasonal change?

It might be. However if I had to guess, based on the depth of Brandon magic systems and how it is intervened in to to the very "fabric" of this word/universe(i.e. his little spren / quantum mechanics reference) I'd bet it is magic

As far as I can tell new years are marked by The Weeping. Do we know if this is a fixed period of time between Weepings?

"Five years ago Kaladin hated the Weeping. It marked the end of an old year and the coming of a new one..."

There is a reference to his sixteen weeping day as well. Also fixed or no, this is the only baseline we have for reference, regardless two years ago are still two years ago.

There is a very nice theory about the calendar and 500 day year, but I don't think this was confirmed by Brandon.

There is a date given for the map Navani drew of the Tower battle, which is "circa 1173".

This is the missing link I was looking for. With that in mind, the event dated at 0, should be between the Hiorocracy(500 years ago) and "Last" desolation(4500 years ago). From what we know 'Day of Recreance' is the only major event in that period of time.

ETA: additionally in one of the sources it said 2 years before the true desolation.

The dates of the epigraphs cover a period a little over two years. (1138 days total, from the 271st day of 1171 to the 409th day of 1173, there are 500 days to a year) I don't think we know an exact date for when anything happens, but we could pretend that the one epigraph out of chronological order is happening on the same day as the events it describes.

It is possible and it would be nice to figure it out, but it wouldn't offer us much more detail, considering the text(Brandon don't go overboard with this like George Martin)

There is a date given for the map Navani drew of the Tower battle, which is "circa 1173".

For sometime now, I was looking something that link those dates with the events and the date and this just what I was looking for

Maybe they started number the years after the so-called "Last Desolation"?

With the above in mind, it has to be before ~700 years before the Hierocracy and 3300 after the "Last" Desolation. Only that comes to mind is 'The Day of Recreance'.

The dates of the epigraphs cover a period a little over two years. (1138 days total, from the 271st day of 1171 to the 409th day of 1173, there are 500 days to a year) I don't think we know an exact date for when anything happens, but we could pretend that the one epigraph out of chronological order is happening on the same day as the events it describes.

Its possible.

That what I thought, untill I noticed this:

Delenar: "...sounded a great deal like what the Hierocracy had said when it had tried to conquer the world five centuries before."

Whereas Odium's plan on Roshar seems to be to have everybody kill eachother in war.

I belive that in the vision where Honor show delenar a possible future, in the very end we see its not only Roshar he seeks to end but the whole Cosmere.

During the Way of Kings the writer of the letter says the person holding Odium is worse then the guy holding Ruin.

Did anyone figured if or how the Alethi dates in the Epigraphs (i.e. year 1171-1173) correlate to the events taking place in the book? Also any idea from what event they started their count?

Whatever it is, I suspect that both the change of attitude observed in Gavilar and dying "crazy talk" related to its discovery.