A few of you know this but most (probably) do not: St. Patrick was neither Irish nor was he Catholic. He was from Scotland, and went as a missionary to Ireland and the Island of Iona.
Patrick is thought to be the patron saint of Ireland, but this is a reconstruction (or re-writing) of the facts about this great missionary.
Rather than go on at length about Patrick on the day that is supposed to honor him (with green beer, strong drink, parades, etc.) I'll just give the link to a site that presents a clear picture about the real man of God in Ireland.