Saint Urho is a fictional saint of Finland, created and elaborated by Finnish Americans to celebrate their heritage.
The legend of Saint Urho was the invention of a Finnish-American named Richard Mattson, who worked at Ketola's Department Store in Virginia, Minnesota in the spring of 1956. Mattson later recounted that he invented St. Urho when he was questioned by coworker Gene McCavic about the Finns' lack of a saint like the Irish St. Patrick, whose feat of casting the snakes out of Ireland is remembered on St. Patrick's Day. In fact, the patron saint of Finland is Henry (Bishop of Finland).
According to the original "Ode to St. Urho" written by Gene McCavic and Richard Mattson, St. Urho was supposed to have cast "tose 'Rogs" (those frogs) out of Finland by the power of his loud voice, which he obtained by drinking "feelia sour" (sour whole milk) and eating "kala mojakka" (fish soup). The selection of the name Urho as the saint's name was probably influenced by the accession of Urho Kekkonen to the presidency of Finland in 1956. Urho in the Finnish language also has the meaning of hero or simply brave.
The original "Ode to St. Urho" identified St. Urho's Day as taking place on May 24. Later the date was changed to March 16, the day before St. Patrick's Day so the Finns could start drinking green beer a day before the Irish. St. Urho's feast is supposed to be celebrated by wearing the colors Royal Purple and Nile Green. Other details of the invented legend also changed, apparently under the influence of Dr. Sulo Havumäki, a psychology professor at Bemidji State College in Bemidji, Minnesota. The legend now states that St. Urho drove away grasshoppers (rather than frogs) from Finland using the incantation "Heinäsirkka, heinäsirkka, mene täältä hiiteen!" ("Grasshopper, grasshopper, go from hence to Hell!"), thus saving the Finnish grape crops. Another version of the modern celebration of St. Urho's Day is that it was created by Kenneth Brist of Chippewa Falls, Wisconsin. Brist, a high school teacher, was teaching in the Upper Peninsula of Michigan in the early to mid-1950s in an area largely populated by people of Finnish heritage. He and his friends concocted March 16 as St. Urho's Day so that they had two days to celebrate, the next day being St. Patrick's Day.