There are parades and then there is Montreal’s St. Patrick’s parade, which has marched through the streets of the city and into Canadian history for 200 years. The street carnival has outlived the Patriote Rebellion of 1837, Fenian infiltration, Orange animosity, strained relationships among Roman Catholic priests who wanted it cancelled, two world wars, two Quebec independence referendums, and two centuries of howling March winds and chilling sub zero temperatures.