10. Until 1970 St Patrick's Day Was A Dry Holiday In Ireland... And Every Single Pub Was Closed
Pints - particularly of Guinness - will be flowing in their millions on St Patrick's Day in 2015, yet in the past this was not the case in Ireland. Traditionally St Patrick's Day was a religious feast day in Ireland - celebrating the arrival of Christianity on to the Emerald Isle - and until 1970 all pubs had to be closed by law. It's now almost impossible to imagine a St Patrick's Day without alcohol - it seems like sacrilege...