How to create a perennial calendar?

I would really appreciate if someone could advise whether it is possible to create a perennial calendar. I have 365 essays (1 for each day of the year) that I would like to repeat in subsequent years.

So an essay that appears on Jan 1, 2005 would also appear on Jan 1, 2006 (and so on) with the *same* bookmarkable link. (Obviously the essay for the 29 Feb would ideally only appear when it is, in fact, a leap year.)

The only way to do this (I imagine) is to somehow delete the bookmark reference to the year (whilst still retaining the code so that the script knows which calendars to reproduce for each month) ??

I have an existing PHP calendar on my site: http://www.xert.org/message/ but this site is not running on WP (I am hoping to migrate it across to WP). Also, the problem is that if someone bookmarks a particular essay one year, they lose the bookmark the following year.

I would also like to be able to use the normal WP calendar on other pages, so this special calendar would only be referenced by a specific category of the site.

Please let me know if you need further details or clarification.

Thanks in advance 🙂