how did "st patricks day" orginate?

Answer 1

The first St. Patrick's Day parade took place not in Ireland, but in the United States. Irish soldiers serving in the English military marched through New York City on March 17, 1762. Along with their music, the parade helped the soldiers to reconnect with their Irish roots, as well as fellow Irishmen serving in the English army.

Over the next thirty-five years, Irish patriotism among American immigrants flourished, prompting the rise of so-called "Irish Aid" societies, like the Friendly Sons of Saint Patrick and the Hibernian Society. Each group would hold annual parades featuring bagpipes (which actually first became popular in the Scottish and British armies) and drums.

There is much more info on the History Channel link below.

Answer 2

I think that it originated with the Catholic church recognizing Patrick as a saint, which entitles him to have is own day like the other saints. As to why March 17, I am not sure why this day was select but it might have some historical meaning to St. Patrick and the Irish.

Answer 3

It's the feast day of St. Patrick(on the Catholic calendar), the patron saint of Ireland, who converted the Irish to Christianity.

Answer 4

It originated as an official public holiday in Ireland at the end of the 19th century when a republican organisation known as the Gaelic League promoted it as a way of giving us Irish back some of our cultural identity that the British had stripped us of.