Discovery has a look.
For thousands of years, Irish Catholics have traditionally celebrated St. Patrick’s Day by attending church in the morning and celebrating in the afternoon with a huge feast, honoring Ireland’s patron saint. Even though March 17 falls in the middle of Lent when Catholics were forbidden to eat meat, this was waived in Ireland for feasting — mostly on cabbage and Irish bacon, according to History.com.
But who was Saint Patrick? The truth is, much of his life is a mystery.