Since I completely geeked out on my answer to the below anon ask I received at tumblr, I figured I may as well share it here too.
Hi! That’s a great question but I feel a little hesitant to give you an exact timeline without having done a ton more research. Also, I’m sorry I took a day to respond but I wanted a chance to think about the best answer and also to gather some of the different topics into one place.
Sorry this is the longest answer ever, especially considering it’s probably not the answer you were hoping to get 😦
The reason I can’t give a super succinct answer is there are actually a lot of background pieces to this topic.
On October 13, 2008 , in the course of an email chain with a reader B.L. (name redacted for privacy) we received the following question. This post is placed behind a cut for minor spoilers through about Evenfall chapter 17.
Note: the conversation we had back and forth following the initial question/answer might be interesting for people to read so I included the reader’s question and my answer, and then after that included our back and forth. It’s labeled B.L. for the reader and Ais for me (if that last part wouldn’t have been, you know, self-evident or anything ^_~).
Since this conversation happened years ago I didn’t get express permission from the reader to repost this. I am hoping that it is acceptable to share this since there are no identifying details, but if you are the reader and wish for me to remove the conversation please let me know and I will do so immediately. Thank you!