St. Patrick's Day Facts, Myths, And Traditions

Ever wanted to know what it's all about? Here are the myths and truths about St Patrick's day.

National Geographic explores the origins, myths and truths about the greenest day of the year.

Who Was the Man Behind St. Patrick's Day?

Bundled up or skimpily clad, few of the revelers lining parade routes and filling Irish pubs have a clue about St. Patrick, the historical figure, according to the author of St. Patrick of Ireland: A Biography.

"The modern celebration of St. Patrick's Day really has almost nothing to do with the real man," classics professor Philip Freeman, of Luther College in Iowa, said in 2009. 

For starters, the real St. Patrick wasn't even Irish. He was born in Britain around A.D. 390 to an aristocratic Christian family that owned a townhouse, a country villa, and plenty of slaves.

What's more, Patrick professed no interest in Christianity as a young boy, Freeman noted.

At 16, Patrick's world was turned upside down: He was kidnapped and sent overseas to tend sheep as a slave for seven years in the chilly, mountainous countryside of Ireland. 

"It was just horrible for him," Freeman said. "But he got a religious conversion while he was there and became a very deeply believing Christian."


Members of the Emerald Isle Step Dancers perform in New York City's St. Patrick's Day parade in 2013.
PHOTOGRAPH BY TINA FINEBERG, AP

St. Patrick's Disembodied Voices

According to folklore, a voice came to Patrick in his dreams, telling him to escape. He found passage on a pirate ship back to Britain, where he was reunited with his family.

The voice then told him to go back to Ireland.

"He gets ordained as a priest from a bishop, and goes back and spends the rest of his life trying to convert the Irish to Christianity," Freeman said.

Patrick's work in Ireland was tough—he was constantly being beaten by thugs, harassed by Irish royalty, and admonished by his British superiors. After he died on March 17, 461, Patrick was largely forgotten.

But slowly, mythology grew around Patrick, and centuries later he was honoured as the patron saint of Ireland, Freeman noted. 


A spectator watches as people dye the Chicago River green ahead of the city's St. Patrick's Day parade in 2013.
PHOTOGRAPH BY PAUL BEATY, AP

Is Your Shamrock Real or Bogus?

According to St. Patrick's Day lore, Patrick used the three leaves of a shamrock to explain the Christian holy trinity: the Father, the Son, and the Holy Spirit.

Today, St. Patrick's Day revelers wear a shamrock. Trifolium dubium, the wild-growing, three-leaf clover that some botanists consider the official shamrock, is an annual plant that germinates in the spring.

Other three-leaf clovers, such as the perennials Trifolium repens and Medicago lupulina, are "bogus shamrocks," according to the Irish Times.

John Parnell, a botanist at Trinity College in Dublin, said in 2010 that Trifolium dubium is the most commonly used shamrock today, which lends credence to the claims of authenticity.

However, he added, the custom of wearing a shamrock dates back to the 17th and 18th centuries, and "I know of no evidence to say what people then used. I think the argument on authenticity is purely academic—basically I'd guess they used anything cloverlike then."

What's more, botanists say there's nothing uniquely Irish about shamrocks. Most clover species can be found throughout Europe.

No Snakes in Ireland

Another St. Patrick myth is the claim that he banished snakes from Ireland. It's true no snakes exist on the island today, Luther College's Freeman said—but they never did.

Ireland, after all, is surrounded by icy waters—much too cold to allow snakes to migrate from Britain or anywhere else.

Since snakes often represent evil in literature, "when Patrick drives the snakes out of Ireland, it is symbolically saying he drove the old, evil, pagan ways out of Ireland [and] brought in a new age," Freeman said.

The snake myth, the shamrock story, and other tales were likely spread by well-meaning monks centuries after St. Patrick's death, Freeman said.

St. Patrick's Day: Made in America?

Until the 1970s, St. Patrick's Day in Ireland was a minor religious holiday. A priest would acknowledge the feast day, and families would celebrate with a big meal, but that was about it.

"St. Patrick's Day was basically invented in America by Irish-Americans," Freeman said.

Timothy Meagher, an expert in Irish-American history at Washington, D.C.'s Catholic University, said in 2009 Irish charitable organizations originally celebrated St. Patrick's Day with banquets in places such as Boston, Savannah, and Charleston, South Carolina.

Eighteenth-century Irish soldiers fighting with the British in the U.S. Revolutionary War held the first St. Patrick's Day parades. Some soldiers, for example, marched through New York City in 1762 to reconnect with their Irish roots.

Other parades followed in the years and decades after, including well-known celebrations in Boston, Philadelphia, and Chicago, primarily in flourishing Irish immigrant communities.

"It becomes a way to honor the saint but also to confirm ethnic identity and to create bonds of solidarity," said Meagher.

Dyeing the River Green for St. Patrick's Day

Sometime in the 19th century, as St. Patrick's Day parades were flourishing, wearing the color green became a show of commitment to Ireland, Meagher said.

In 1962 the show of solidarity took a spectacular turn in Chicago when the city decided to dye a portion of the Chicago River green.

The tradition started when parade organizer Steve Bailey, head of a plumbers union, noticed how a dye used to trace possible sources of river pollution had stained a colleague's overalls a brilliant green, according to greenchicagoriver.com.

Bailey thought, Why not use the dye to turn the whole river green on St. Patrick's Day? So began the tradition.

The environmental impact of the dye is minimal compared with pollution from sewage-treatment plants, Margaret Frisbie, the executive director of the advocacy group Friends of the Chicago River, said in 2010.

Rather than advising against the dye, her group focuses on turning the Chicago River into a welcoming habitat full of fish, herons, turtles, and beavers. If the river becomes a wildlife haven, the thinking goes, Chicagoans won't want to dye their river green.

"Our hope is that, as the river continues to improve, ultimately people can get excited about celebrating St. Patrick's Day different ways," she said.

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Lead Image: Revelers blow bubbles at the St. Patrick's Day parade in Savannah, Georgia, in 2013. PHOTOGRAPH BY RICHARD BURKHART, AP

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