
Every year, more than 100 countries turn green for one day. Landmarks light up, rivers get dyed, and people who have never set foot in Ireland put on a shamrock and mean it. Almost none of them know that for most of Ireland’s history, this was a quiet religious holiday — and that Irish pubs were legally required to stay closed on March 17th until 1970. This is Guide № 002: the real history, the myths worth retiring, a timeline of how one saint’s feast day became a global celebration, and how to actually get it right.
In this guide
- Who St. Patrick actually was
- A timeline: feast day to global phenomenon
- Why the day was quiet in Ireland for so long
- How New York, not Dublin, built the modern celebration
- Why the colour was originally blue, not green
- The shamrock, the snakes, and the myths worth retiring
- How Dublin caught up — and overtook everyone
- How the world celebrates today
- A short glossary
- How to celebrate it properly
- Frequently asked questions
- Help us reach One Million Irish Hearts
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More Love Ireland Guides
The Love Ireland Guide is a numbered series — one tightly focused subject at a time, each with its own downloadable collectible PDF.
Secure Your Dream Irish Experience Before It’s Gone!
Planning a trip to Ireland? Don’t let sold-out tours or packed attractions spoil your journey. Iconic experiences like visiting the Cliffs of Moher, exploring the Rock of Cashel, or enjoying a guided walk through Ireland’s ancient past often sell out quickly—especially during peak travel seasons.

Booking in advance guarantees your place and ensures you can fully immerse yourself in the rich culture and breathtaking scenery without stress or disappointment. You’ll also free up time to explore Ireland’s hidden gems and savour those authentic moments that make your trip truly special.
Make the most of your journey—start planning today and secure those must-do experiences before they’re gone!




