St. Patrick’s Day is a cultural and religious holiday celebrated on March 17, the traditional death date of Saint Patrick (c. 385461), the foremost patron saint of Ireland.
The day commemorates Saint Patrick and the arrival of Christianity in Ireland, and celebrates the heritage and culture of the Irish in general. Celebrations generally involve public parades and festivals, ceilidhs, and the wearing of green attire or shamrocks. Christian religious observances also take place, particularly in Ireland.
