America was enriched by Irish immigrants, though at the time they arrived, few were actually welcomed.
One of the traditions that the Irish brought to America was the celebration of St. Patrick's victory, driving the snakes from Ireland. I won't ask what at the bugs and mice that the snakes had been living on. That would be rude.
The shamrock, the four-leafed clover, the celebration of beer and Irish emerald green. These are all recognized symbols of the day. Named after a Catholic saint.
So, is St. Patrick's Day a religious holiday, or a secular celebration of a holy man?
Or just a different name to sell t-shirts and beer?