As a Canadian, I am a bit offended by the handling of the Oregon territory/Columbia District. It is marked as unclaimed when in fact, it was claimed by the Brit

As a Canadian, I am a bit offended by the handling of the Oregon territory/Columbia District. It is marked as unclaimed when in fact, it was claimed by the British. Then, it is marked as US territory when it was, at best, disputed. I suppose the Treaty of 1818 made it "shared" territory (and to be fair, the explanatory text explains this), but I still find it misleading to label it as US territory. Finally, the territory was split with the Oregon Treaty to form the current border.