Saint Patrick's Day or the Feast of Saint Patrick is  a cultural and religious celebration held on the 17th of March. It is the traditional death of Saint Patrick, the foremost patron saint of Ireland.

Significance of Day: Feast of Saint Patrick is in commemoration of the arrival of Christianity in Ireland.

Observation : Attending mass service.

The Evolution of The  Day: The holiday has evolved into a celebration of Irish culture with parades, special foods and a whole lot of green.