Board Thread:General Discussion/@comment-26006155-20190617222636/@comment-38339538-20190704023755

Replacing a number in a year with an X is a sci-fi trope done to leave the actual number that's supposed to be there ambiguous. Chara falling down in 201X doesn't mean Spring 2020 is the earliest possible date could have died. It could be anywhere from Spring 2011 to Spring 2020.

I'd say 201X is supposed to be 2015 since that's when the game came out, but that's just my opinion.