St Piran's Day (Cornish: Gool Peran) 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. St Piran's Day started as one of the many tinners' holidays observed by the tin miners of Cornwall. Saint Piran's Flag is also seen flying throughout Cornwall on this day. Redruth - first held in 2011 and billed as the biggest St Piran's celebration in Cornwall.