With concerts of local fiddle bands, French Canadian acts from Quebec, fireworks displays and a French-language Acadian poetry contest, the shindig attracts thousands every year.
As outsiders do not often understand, and perhaps should, the clash between Canada's centre and its provinces extends far beyond the status of French-speaking Quebec.
For the early French explorers who arrived in Quebec province in the 1530s, the Saint Lawrence was key to the development and success of the region.
And Mr Harris does not speak French, a handicap in Quebec.
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The couple will then fly to the French-speaking province of Quebec where a small, radical separatist group has vowed to make their brief stay as disagreeable as possible.
But as French-speakers move to the suburbs, and immigrants settle in central Montreal, there are still fears that French could become a minority tongue in Quebec's largest city.
James Wolfe, a British military commander, was killed in the battle in which his forces defeated the Marquis de Montcalm and the French on the Plains of Abraham, Quebec.
And the language divide is much less contentious in Wales and Scotland than it is in Canada, where pressure for independence in Quebec is intimately bound up with French-speakers' worry about the survival of their language and culture.
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She quickly backpedalled saying the French test would only apply to people coming to Quebec after her party would come into power.
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In 1673 French explorers Louis Joliet and Jacques Marquette paddled up the Mississippi on their way back to Quebec.
But along with Mr Dumont's conservative platform, it seems to have resonated with French-speakers elsewhere in the province, in the suburbs and farming areas and even in Quebec City.
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