Giant Ridiculous Asspull Timeline of FE Combining

I uhh. Made some vegan brownies last night. With like. An entire cup of instant coffee baked into them. As such, I was unable to sleep much, and hyperfocused like a madman on tying the various FE worlds together for like the millionth time. I believe I've managed to create a believable timeline including all of the games. I was unsure about where to put the events of the Tellius games, the only ones that occur on a separate world, so they are only mentioned in the really bad rambling at the end. Since there's an official timeline for those, and they don't tie in to the main timeline world, I've left that up to the imagination.

A note before I start: Itycea is the name wonderful Kyusil came up with for the land beyond the Dragon's Gate. If you don't like it, you're welcome to pretend that the rename of a certain continent in the timeline doesn't take place. c: This was made more as a personal headcanon thing for myself rather than others, but I decided I would share at a later time, so... that's why it is included.

Another note: This gets super headcanony towards the end as well, and there are a lot of things mentioned that... just pretend you're reading a crazy fic okay? All the events mentioned in canon are included, if I remembered them, and they match up with the dates in game timelines. The extra stuff is just for fun.

Last note: There are mentions of FE13 things at the end, but nothing that should spoil the plot past Chapter 13.

( This gets really long... )