Actually there's been an Elisp function posted to the Org mailing list to calculate Easter dates that has made it into the Org FAQ [1]. However, I'd prefer if

Actually there's been an Elisp function posted to the Org mailing list to calculate Easter dates that has made it into the Org FAQ [1]. However, I'd prefer if all these things were merged into mainline. [1] https://orgmode.org/worg/org-faq.html https://orgmode.org/worg/org-faq.html