Saint Patrick is the patron saint and national apostle of Ireland.
St Patrick is credited with bringing christianity to Ireland.
Why Saint Patrick's Day?
Saint Patrick's Day has come to be associated with everything Irish: anything green and gold, shamrocks and luck. St. Patrick's Day is a traditional day for spiritual renewal and offering prayers for missionaries worldwide.
Find more information about this festivity on:
http://en.wikipedia.org/wiki/Saint_Patrick
http://www.history.com/topics/st-patricks-day
And watch this video
Video from: http://www.youtube.com
How are you going to celebrate St. Patrick's day?