Saint Patrick’s Day was initially established to commemorate the death of Patrick, a fifth-century Romano-British cleric who became Ireland's patron saint.

Today, it’s widely recognized as a day for indulging in Shamrock Shakes from McDonald's. But what led to the rise of this minty treat as a seasonal favorite? And why isn't it available all year?

Have you ever tried a Shamrock Shake? Share your thoughts in the comments!