I don’t remember the exact date. It wasn’t a blog-format (obviously), but just a website. I put the kernel of what would become the Big List up sometime in 1997.
I guess I could go to the Wayback machine and see if I could narrow it down a bit.
(I did try the Wayback machine. I went live with the wilton.net domain on 18 April 1999. An early incarnation can be seen here.
There was an earlier version hosted by Sprynet, but I can’t recall the URL, so the Wayback machine isn’t helping.