From some co-workers:
Today marks the 142nd anniversary of Canada becoming a self-governing country. Celebrations are the same as July 4th in the US ? fireworks, barbeques??. and, of course, beer (come on, we are talking Canada here). Every year in Windsor/Detroit there is a huge International fireworks display over the Detroit River separating the two countries to celebrate Independence Day in both countries. It always starts with a helicopter flying over the river displaying huge flags of both countries. For some reason they always have this celebration the week before July 1 and 4, though. It was on June 24 this year.
There must have been a French Canadian planning the event: June 24th is St Jean Baptist day, the Quebec ?National Holiday.?
And an article: http://www.nytimes.com/2009/07/01/opinion/01canadaday.html?_r=2&emc=eta1