Thread:Jamie/@comment-126761-20170314212552/@comment-10473115-20170314224512

Chronological listing was introduced to arrange comic appearances in the category, see Category:Peter Quill (Earth-616)/Appearances. Now when you asked, I notice that it affects to all our subcategories but prints Chronological Appearances on the listing title only if the category title includes word appearances like Category:Major Appearance Templates. It also includes dates of comics on Category:Agamotto (Earth-616)/Mentions but not on Category:Agamotto (Earth-616)/Minor Appearances.

It clearly needs some tweaking as it's quite confusing like you mentioned. You should ask from Peteparker who arranged this thing. There weren't much discussion how it was done but my guess is with some clever use of mw:Manual:$wgCategoryCollation. It would be good if you could help us with this.