St. Patrick's Day is the one day a year where everyone is a little bit Irish, but how much do you know about the holiday?

With St. Patrick's Day celebrated across the world, did you ever wonder how much you actually know about Ireland's biggest national holiday?

Read More: Weird and wonderful facts about St. Patrick and March 17

Here are our top facts about St. Patrick's Day. Let us know how well you do in the comments section!

St. Patrick was not Irish

St. Patrick was actually from Wales (Getty Images)

St. Patrick was actually from Wales (Getty Images)

Ireland's patron saint was, in fact, from Wales!

Read More: The truth about St. Patrick's life from kidnapping to Irish Catholicism

The shamrock was originally a teaching tool

Shamrocks were educational (Getty Images)

Shamrocks were educational (Getty Images)

St. Patrick is said to have used the three-leaved plant to explain the Holy Trinity (Father, Son, and Holy Spirit) to the pagan Irish. This is not necessarily true, but a nice sentiment regardless. 

First St. Patrick's Day parade

FDNY members marching in the NYC St. Patrick's Day parade (Getty Images)

FDNY members marching in the NYC St. Patrick's Day parade (Getty Images)

The first St. Patrick's Day parade took place in New York in the 1760s.

Read More: Surprising places around the world that celebrate St. Patrick's Day

Wear blue on St. Patrick's Day

A bit of blue on St. Patrick's Day (Getty Images)

A bit of blue on St. Patrick's Day (Getty Images)

For many years, blue was the color most often associated with St. Patrick. Green was considered unlucky. St. Patrick's blue was considered symbolic of Ireland for many centuries and the Irish Presidential Standard is still blue.

Worlds shortest St. Patrick's Day parade

The Shorter the Better

The First Ever 16th Annual Shortest St. Patrick's Day Parade is set for March 17th and we are now accepting applications for parade entries. Only 40 of the most creative, colorful, bizarre, and fun ideas will receive our attention! Applications can be found at www.shorteststpats.com. For more information contact Bill Solleder at 501-321-2027. Video Directed by Justin Farley. #visithotsprings #shorteststpats

Publiée par World's Shortest St. Patrick's Day Parade sur Jeudi 17 mai 2018

For many years, Dripsey in County Cork had the world's shortest parade, just 77 feet, the distance between two pubs – The Weigh Inn and The Lee Valley. Currently, the town of Hot Springs, Arkansas, claims to have the shortest parade – a 98-foot route on Bridge Street. Recent participants included the Irish Elvises and the San Diego Chicken.

Read More: When are St Patrick’s Day 2019 parades taking place in Dublin, New York, Boston, and Chicago?

Over 200 years of St. Patrick's Day in Sydney

Sydney Opera House on St. Patrick's Day (Getty Images)

Sydney Opera House on St. Patrick's Day (Getty Images)

In 2010, the Sydney Opera House went green to mark the 200th anniversary of St. Patrick's Day there. In Sydney, St Patrick's Day was first marked in 1810, when Lachlan Macquarie, the Governor of New South Wales, provided entertainment for Irish convict workers.

The Chicago green river

The Chicago River on St. Patrick's Day (Getty Images)

The Chicago River on St. Patrick's Day (Getty Images)

In Chicago every year, the Plumbers Local 110 union dyes the river "Kelly" green. The dye lasts for about five hours.

Read More: Being Irish on St. Patrick’s Day - why we love it

Shamrocks at the White House

Leo Varadkar, Donald and Melania Trump on St. Patrick's Day (Getty Images)

Leo Varadkar, Donald and Melania Trump on St. Patrick's Day (Getty Images)

Traditionally, every year, the Irish leader hands a crystal bowl full of shamrock to the US President. The shamrock, grown in Kerry, is immediately destroyed by the Secret Service after the exchange.

Guinness sales St. Patrick's Day

Slainte (Getty Images)

Slainte (Getty Images)

Guinness sales soar on St. Patrick's Day. Recent figures show that 5.5 million pints of the black stuff are downed around the world every day. On St. Patrick's Day that figure is doubled.

Read More: Dining with Guinness - great foods to pair with your perfect pint

* Originally published in February 2012.

St Patrick’s Day 2019: Looking for events in your community this St Patrick’s Day or to share further information on the March 17 celebrations in your area? Join our St Patrick’s Day 2019 group and celebrate St Patrick’s Day 2019 in proper Irish style.

What fun facts do you know about St. Patrick's Day? Share in the comments!

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Fun facts to know about St. Patrick's DayIreland's Content Pool