hm. i didn't remember this yesterday but now it seems to me that actually we have discussed adding the publish date as a new column to calibre before. i think kovid said it would be complicated to add a new data field, but instead you can add the publish year in the tag field or the comments field, and he also made the date field manually editable so it doesn't have to be the date the book is added to the database.
so, i think we'll just have to be content with the dates as they are.
