The Church service on March 17th commemerates this about St. Patrick.
Since the 11th century, this food, called St. Patrick's Fish, was allowed, even though the feast occurs during Lent. The allowance is based on a legend that Patrick had stored away some for an emergency during Lent, and when an angel instructed him to throw it into a stream, it turned into fish. Since fish is allowed during Lent, this is allowed to be eaten.
In 1681 he described Saint Patrick's Day in his 'Observations on a Tour through the Kingdom of Ireland'
In 'Observations on a Tour through the Kingdom of Ireland', we are told that all Irish wore these affixed to their hats, made of pins or green thread.
In 'Observations on a Tour through the Kingdom of Ireland', we are told that these were worn only by the lower classes.
In 'Observations on a Tour through the Kingdom of Ireland', we are told that the lower classes received this from their landlords.
By the 19th century, a colorful cross made from eight interlocking circles drawn on paper and fixed to the hat were worn by these.
By the 19th century, a simple wooden cross decorated with colorful thread and green cloth was pinned to the clothes of these.
From the 20th century, a simple green rosette, a harp pin or a green ribbon is worn (or all together in a daring combination) by these.
From the 20th century, a sprig of shamrock is worn on a lapel or dress by these.
A very widely held custom is to drown the shamrock after Mass, which entails filling the pota Pádraig, 'Patrick's Pot', with this (and a shamrock), and drinking it all.
St. Patrick's day is a public holiday in:
This is the original color associated with St. Patrick.
This color eventually came to symbolize the feast, and during the 1798 rebellion, soldiers would wear uniforms of this color on the Feast Day.
The Feast of St. Patrick was adopted by the Universal Church in the 1600's due to the influence of this Waterford-born Franciscan scholar.
The Religious Celebration is sometimes moved to April, if it falls during this period.
St. Patrick's day became a public holiday in 1903, with the passage of the Bank Holiday (Ireland) Act introduced by this Irish member of Parliament.
A law was passed in the early 1900's ordering these closed, and was repealed in 1970.
Ireland's largest St. Patrick celebrations outside of Dublin, are held in this place, where Saint Patrick is rumoured to be buried.
The shortest St Patrick's Day parade in the world takes place in this village. It is just 100 yards, going between the village's two pubs.