Saint Piran’s Day (in Cornish, Gool Peran), or the Feast of Saint Piran, is the national day of Cornwall.  Held on 5 March every year. The day is named after one of the patron saints of Cornwall, Saint Piran, who is also the patron saint of tin miners.

The modern observance of St Piran’s day as a national symbol of the people of Cornwall started in the late 19th and early 20th century when Celtic Revivalists sought to provide the people of Cornwall with a national day similar to those observed in other nations. Since the 1950s, the celebration has become increasingly observed and since the start of the 21st century almost every Cornish community holds some sort of celebration to mark the event.  

The flag of Saint Piran, black with a white cross, is also seen flying throughout Cornwall on this day. The colours symbolise white tin flowing from black ore, reflecting Cornwall’s mining heritage.

Trevillett Mill, Rocky Valley, North Cornwall.