We have a few solid guesses, but no medieval decree saying, “Thou shalt call it Boxing Day because of the boxes.” It’s like the word “okay”—we use it daily, but its origin is a fuzzy mess. And that’s okay. The beauty of traditions is they evolve, layer upon layer, until the original meaning is just a whisper.
Next time someone asks you on December 26th, “Why’s it called Boxing Day?” you can hit them with the servant theory, the church box theory, or the sailor one. Or just shrug and say, “You know what? I’m too full of pudding to care. But pass me the cranberry sauce.”
Now, if you’ll excuse me, I have a box of chocolates to demolish. Happy Boxing Day, everyone—whatever name you give it.