As Christianity spread across the Roman Empire, Lupercalia was outlawed and replaced with a church-approved version held the day before known as Saint Valentine's Day that took its place.
I've got all of my days here with the really important dates to keep in mind, like the master YouTube course enrollment, Valentine's Day, pay quarterly taxes, all that fun stuff.
Or maybe you're like me and you think that Valentine's Day is all commercial garbage and that actually every day is a day to show love to your partner.