St Piran's Day St Piran's Day St Piran's Day () is the county 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. Other miners' holidays of a similar nature include Picrous Day and Chewidden Thursday. The miners of Breage and Germoe observed St Piran's feast day as that of their patron saint until at least 1764. "St. Piran's Day was said to
CCGS Louis S. St-Laurent team of scientists mapping the sea floor. The first leg of the mission was a voyage to Norway mapping the Atlantic. This was to be followed by a 47-day leg to the North Pole. Travelling with the Swedish icebreaker "Oden", "Louis S. St-Laurent"s mission to the Arctic was the last of three performed in order to define Canada's claim to the Arctic continental shelf. While mapping during transit to the north, the scientists aboard the ship discovered a chain of 25–30 undersea volcanoes off the coast of Greenland. CCGS Louis S. St-Laurent CCGS "Louis S. St-Laurent" is a Canadian Coast