This weekend marks the feast of the patron saint of Ireland, which over the years became the demand of an immigrant community in the United States. In its beginnings in Ireland it was a more solemn day of religious commemoration.
The spread of St. Patrick's Day celebrations in the U.S. was a way for Irish immigrant communities, faced with nativistism in the 19th century, to combat discrimination and antagonism against them. A popular symbol during the holiday is the three-leaf clover, linked to Ireland and St Patrick.