That Mr. Harper and his colleagues are all gung-ho about the War of 1812, and spending millions on commemorating it, is hardly surprising. Reactionaries seem to have a thing about war. Perhaps it appeals to their need for simplicity, for seeing issues in black and white, us and them, and war is the ultimate us and them. And of course the War of 1812 was a British war, and Mr. Harper et al. have a thing about our British heritage as well.
Is it of interest to know about those events that resulted in modern Canada? Of course it is, at least if you are interested in history, but that doesn't somehow make them Canadian. It is much more sensible to commemorate events that are. If we need anything more than Confederation, I might suggest the patriation of the Constitution in 1982. I certainly wouldn't choose a war.
Others would, of course, have quite different preferences. But let us at least confine the choices to post July 1, 1867, i.e. to Canada.