St Patrick was not Irish at all. He was born in Roman Britain, likely in what is now England or Wales, before being kidnapped by Irish raiders and later returning to Ireland as a missionary.

His original name was not Patrick. Historical records suggest his birth name was Maewyn Succat, and he adopted the Latin name Patricius after becoming a priest.

St Patrick’s Day is celebrated on March 17 because tradition holds that this was the date of his death, making it both a cultural and religious observance.

The first recorded St Patrick’s Day parade did not take place in Ireland but in St Augustine, Florida, in 1601. It was organized by Irish settlers under Spanish rule.

New York City held its first St Patrick’s Day parade in 1762, started by Irish soldiers serving in the British army as a way to celebrate their heritage.

Ireland itself did not host an official St Patrick’s Day parade until 1931, long after the holiday was popularized abroad.

For much of the 20th century, Irish pubs were legally required to close on March 17 because the holiday was treated as a solemn religious event rather than a party.

The Chicago River has been dyed green every year since 1962, originally using a dye developed to track pollution and later switching to environmentally safe coloring. About 40 pounds of dye are used to color the river each year.

Green was not originally associated with St Patrick. The saint was traditionally linked to the color blue, which appeared on early flags and artwork.

Green became dominant because Ireland is known as the Emerald Isle and because green became a symbol of Irish nationalism.

The shamrock is tied to St Patrick because legend says he used its three leaves to explain the Christian Holy Trinity to Irish converts.

The word “shamrock” does not refer to one specific plant species but to several types of three leaf clover commonly found in Ireland.

The correct informal name for the holiday is “St Paddy’s Day,” not “St Patty’s,” because Paddy comes from the Irish name Pádraig.

Corned beef and cabbage is more Irish American than Irish. Immigrants in the US adopted it as a substitute for traditional Irish bacon.

Ireland has no native snakes, meaning the famous story of St Patrick driving them out is symbolic rather than literal. Some believe the snakes were a metaphor for paganism.

“Drowning the shamrock” is an old Irish custom in which a shamrock is placed in a drink and toasted before being tossed over the shoulder for luck.

Irish government leaders often travel abroad during St Patrick’s Day to promote tourism, culture, and international relations.

St Patrick’s Day is celebrated worldwide, including in countries with little Irish population, making it one of the most global holidays.

Leprechauns were not originally part of St Patrick’s Day and come from older Irish folklore rather than Christian tradition.

The shamrock became a political symbol during the 18th century when Irish people wore it as a sign of resistance.

Hot Springs, Arkansas, claims to host one of the world’s shortest St Patrick’s Day parades at just over 90 feet long.

Little Compton, Rhode Island, also competes for the title of shortest parade, with one that runs only about 89 feet.

Four leaf clovers are rare, appearing only about once in every 10,000 clovers.

Wearing green is tied to folklore claiming leprechauns can see you if you are not wearing it, giving them permission to pinch you.

Guinness experiences a massive global spike in sales around March 17, making it one of the brand’s busiest days of the year.

Green beer is not an Irish tradition at all but an American invention created by adding food coloring to regular beer.