Saint Patrick's Day is a cultural and religious celebration held on 17 March, the traditional death date of Saint Patrick (c. 385 – c. 461), the foremost patron saint of Ireland.(source - Wikipedia).

Saint Patrick was a 5th-century Romano-British Christian missionary and Bishop in Ireland. Much of what is known about Saint Patrick comes from the Declaration, which was allegedly written by Patrick himself. It is believed that he was born in Roman Britain in the fourth century, into a wealthy Romano-British family. According to the Declaration, at the age of sixteen, he was kidnapped by Irish raiders and taken as a slave to Gaelic Ireland. It says that he spent six years there working as a shepherd and that during this time he found God.

The Declaration says that he spent many years evangelising in the northern half of Ireland and converted thousands to Christianity. Tradition holds that he died on 17 March and was buried at Downpatrick. Over the following centuries, many legends grew up around Patrick and he became Ireland's foremost saint.

Celebrations generally involve public parades and festivals, Irish traditional music sessions (céilithe), and the wearing of green attire or shamrocks. Sometimes famous landmarks are lit up in green.

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