The spread of St. Patrick's Day celebrations in the U.S. was a way for Irish immigrant communities, who in the 19th century faced discrimination and opposition, to stake that ground, he says: “It’s a kind of immigrant Irish way of combating nativist antagonism against them.”

St. Patrick's Day is celebrated annually on March 17 in honor of the patron saint of Ireland. While not a federal or state holiday in Michigan, many cities hold parades and events to celebrate Irish heritage.