Cornwall Day, also known as St. Piran’s Day, is observed in Cornwall, a ceremonial county in South West England, every March 5. The day honors Saint Piran, the patron saint of Cornwall and tin miners, who is believed to have arrived from Ireland in the 5th century. Legend states that he was cast into the sea but survived, leading to his settlement in Cornwall where he founded an abbey and rediscovered tin smelting. Initially celebrated by tin miners, St. Piran’s Day evolved into the national day of Cornwall during the late 19th and early 20th centuries due to campaigns by Celtic Revivalists. Today, the celebration includes colorful parades, traditional Cornish music and dance, poetry readings, and various community events, with the St. Piran’s Flag—a white cross on a black field—prominently displayed. While there have been calls for it to be recognized as a public holiday, only some towns in Cornwall grant a day off for the occasion.