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seems outdated https://www.irishcentral.com/roots/history/all-pubs-ireland-closed-st-patricks-day https://www.irishcentral.com/roots/history/all-pubs-ireland-... You may be surprised to learn that all the pubs in Ireland used to be closed on St. Patrick's Day, which is now by and large considered a drinking holiday. Up until the 1970s, Irish law prohibited pubs opening on March 17 as a mark of respect for this religious day. It was feared that leaving the pubs open would be too tempting for some during Lent and would lead to a disrespectful amount of drunkenness on this most solemn day.