Big celebrations take place every year on 17 March, to mark St Patrick's Day. The patron saint of Ireland is honoured around the globe and one of the largest parades take place in New York – 13 per cent of whose residents are of Irish ancestry.
Here are some more facts about Ireland and the big man himself, to get you in the mood for St Patrick's Day, wherever you're celebrating.
Patrick was born into relative wealth in Britain, then kidnapped and taken to Ireland to work as a slave. He eventually escaped before returning to spread the word of God.
Upon his return to Ireland as a bishop, he used a Shamrock to explain the notion of the father, the son and the holy spirit, to the king of Ireland – King Laoghaire. The King was so impressed he converted to Christianity.
Legend has it that Patrick drove all the snakes from the land into the sea. However, there's no evidence that snakes have ever inhabited the country.
More than 10 million glasses of Guinness stout are enjoyed every single day around the world – 1.8 billion pints are sold globally every year. Currently brewed in more than 150 countries, a 'perfect pour' of the stuff takes 199.50 seconds (including rest).
A tradition for more than 40 years, every year the Chicago Journeymen Plumbers use an environmentally friendly dye to turn the Chicago River a perfect shade of green.
After his death, St. Patrick’s jawbone was allegedly preserved and used for good fortune during times of childbirth, fits and to ward off the ‘evil eye’.
Kissing the famous stone – a block of bluestone built into the battlements of Blarney Castle in Ireland – is alleged to endow the kisser with the gift of the gab.
The real four-leaf clover comes from the White Clover plant – considered to be the original shamrock. The leaves of Pepperwort and Water Clover are commonly passed off as shamrocks.
The number of US residents claiming Irish ancestry is roughly seven times the total number of people living in the Republic of Ireland. The traditional St Patrick's Day dish in North America is corned beef with cabbage.
From 1905 until the 1970s, all pubs were closed across the country on 17 March by law.