In 1903, St Patrick’s Day became an official public holiday in Ireland. This was thanks to the Bank Holiday (Ireland) Act 1903, an act of the United Kingdom Parliament introduced by Irish Member of Parliament James O’Mara.
The first official, state-sponsored St Patrick’s Day parade in Dublin took place in 1931.
The first St Patrick’s Festival was held on 17 March 1996. In 1997, it became a three-day event, and by 2000 it was a four-day event. By 2006, the festival was five days long; more than 675,000 people attended the 2009 parade. Overall 2009’s five-day festival saw almost 1 million visitors, who took part in festivities that included concerts, outdoor theatre performances, and fireworks.
Saint Patrick’s Day celebrations have been criticised, particularly for their association with public drunkenness and disorderly conduct.