It’s Sunday, May 13, 2018- Happy Mother’s Day! (Where I am, at least).
Not to start off too sentimental or anything (*cue sarcasm*), but I have always been interested in the English language; when I was a kid, I wondered whether it was correct to write ‘Happy Mother’s Day’ or ‘Happy Mothers’ Day’ on my Mother’s Mother’s Day card (my rationale was simply that there are many mothers in the world, and it’s their day, so wouldn’t Mothers’ Day be preferred?). Fortunately, the Internet has cleared this up; both are of course grammatically correct, but it is my understanding that the intention of Mother’s Day is to celebrate your own mother (rather than all mothers).