(this got way too long i'm sorry lol) don't even get me started on the timeline there's so much that doesn't make sense!! i've tried to map it out because i am insane but i am definitely putting more thought into this than cc herself. like, in the days past 1900 chapter cordelia mentions that she's 13, when it's literally impossible for her to be 13 that year ????
and lowkey i am just very excited to see someone else mention the mess that it is the timeline because i've been thinking about when alastair and thomas must have gone on their travel year (and also during that travel year when thomas must have gone to paris because they wouldn't just give him a holiday immediately right, like it must have been december 1902 they met, yes i am overthinking this) for years lol
my best guess is that charles arranged to marry ariadne in early 1901 but it wasn't officially announced?? it was just an arrangement/promise and then he went to paris and met alastair later that year (though i think they'd already met yikes) and they dated sometime in 1901 (where alastair would have been 16-17 /yikes/), for any of this to work i think we just have to accept that shadowhunters can go on their year abroad before they turn 18, or maybe alastair wanted to get out of the house :( and then maybe charles told alastair of the engagement a little bit into their relationship?? don't even get me started on thomas' travel year, we know it lasted 9 months, was from 1902 to 1903 and he had come back fairly recently in august (and tbh i'm gonna stretch that definition of recent and just say the thieves are all being dramatic when they're still toasting him coming back at the beginning of chog). but he also took two weeks holiday in 1902 and saw alastair (who i have to assume was secretly visiting charles since if he was still on his travel year, he could have just said that instead of being cryptic and hilarious lol) anyways in conclusion the timeline is a mess
i thought cordelia's birthday must be really late in the year but i did not realise this means it would be impossible for her to have her parabatai ceremony lol, okay i can't work out that one unless everyone's straight up lying or don't know their own birthdays
anyways i clearly think about this way too much, sorry for rambling in your inbox, you did not ask for this lmao i have just had many thoughts about timelines from like two years ago that all bubbled up to the surface when i saw your post