Add a reply-to email address for each post in your RSS feeds.

This "On This Day" plugin allows you to enter historic or future events and display them via the included widget and shortcodes.

Lists posts published to your site on this day in previous years via admin dashboard widget, block, shortcode, and/or optional daily email.

Display your blog posts from this date in previous years as a sidebar widget.

Widget to display a list of posts published "on this day" in years past. A good little bit of nostalgia for your blog.