After too much green beer at the authentic Irish Pub Shive O'Metimber's, I stumbled across the story behind nearly every Irish Pub outside of Boston.
"A few decades back, St. Patrick's Day was a relatively quiet day in Ireland. It was a religious holiday; pubs were closed, and no one dyed anything green. A typical Dubliner might attend Mass, eat a big meal with the family, and nod off early. In the '90s, my friends who grew up in Dublin used to go to a hotel on St. Paddy's Day to watch the American tourists sing Irish drinking songs and celebrate excess."