Super Fast Indexing Of My Newest Blog

Earlier today, I was so surprised when I knew that my newest blog: Stadium Nostalgium had got indexed by Google in one day. However, I only did simple SEO (search engine optimization) methods for it. I guess the strong point was my providing of its link from this blog.
It was really fast, I thought a brand new blog needs at least about four days before getting listed in Google and impossible to get any faster. I guess I was wrong.