I think you missed some of the contributions of Canada or Canadians to the world's culture - may I add:
Superman (the very icon of Americanness; yes, it's true), HOCKEY, basketball (yes, it's true) , HOCKEY, acrylics (Plexiglas/Perspex/Lucite), HOCKEY, the green garbage bag, HOCKEY, the anti-gravity suit, HOCKEY, caulking gun, HOCKEY, electric cooking range, HOCKEY, ear piercer, HOCKEY, electric hand prosthesis for children, HOCKEY, the electric cooking range, HOCKEY, the electric wheelchair, HOCKEY, heart valve opertion (first one), HOCKEY, hydrofoil boat, HOCKEY, electron microscope, HOCKEY, insulin as a diabities treatment, HOCKEY, the snowplow (naturally - we're from the Great White North, eh?), HOCKEY, insulation (again, naturally), HOCKEY, five pin bowling (our latest sports export seems to have trouble gaining a foothold 'stateside', but is great for the ladies), HOCKEY, IMAX film format, HOCKEY, first patent of the lightbulb (yes it's true - Henry Woodward, 1874), pacemake, HOCKEY, pablum, HOCKEY, the tuck away beer case handle (hey, they're not all world-beating inventions, OK), HOCKEY, portable high chair, HOCKEY, snowmobile (again, naturally), HOCKEY, the screw propeller, HOCKEY, the variable pitch propeller, HOCKEY, the zipper, HOCKEY, 'standard time', HOCKEY, the telephone, HOCKEY, the best screw ever (Robertson), HOCKEY, stol aircraft, HOCKEY, washing machine, HOCKEY, the Walkie-Talkie, HOCKEY, the paint roller, HOCKEY, newsprint, HOCKEY, java computer language, HOCKEY, table hockey, HOCKEY, goalie mask, and HOCKEY.
Oh, by the way, did I mention hockey?
You can visit some of the Canadian inventions, here - http://inventors.about.com/library/weekly/aa090100a.htm?once=true&
and for those who like to putter about in the workshop, some Canadian inventions they shouldn't be without ...http://www.canadianhomeworkshop.com/inventions.html
and by the way, did I mention hockey?
Jay