Deletion of Japanese Historical Maps

Comment: According to #INTERNET, "Wikipedia articles should not exist only to describe the nature, appearance or services a website offers, but should describe the site in an encyclopedic manner, offering detail on a website's achievements, impact or historical significance." There are plenty of other sites that link to this one, often with a short description of its nature; but in the absence of substantive treatment in reliable secondary sources, this fails the |general notability guideline, I think. It's a site that could be certainly be included as an external link in relevant articles, but not a topic for an article of its own
Stance: delete
Cited policy: Wikipedia:What Wikipedia is not (WP:NOT||WP:GNG)