I wonder if there's any kind of recorded history of iichan/wakachan. Couldn't find anything with a cursory google search.
Just checked back some of my records, and the earliest references I have were from around 2006 and it was hosted on chiyochan.net. It's quite likely it was around before then, but I wasn't really involved in anything else on iichan so not sure when it stopped being associated.
I don't really have an order or timeline for these but I know it was hosted on chiyochan.net, koichan.net, server50734.uk2net.com, wakachan.org, and shimauu.net at least (I think the last one was around 2012).
Looking at >>1
it's been hosted here since December 2015, there may be more history in that thread.