This Day in History – October 20, 1818 Tags: 49th Parallel, British North America, Convention of 1818, international border, international boundary, October 20 1818, this day in history, This Day in History October 20, This Day in History October 20 1818, Treaty of 1818, US-Canada border, US-UK relations, Share on: Share: This is where the text will go.View our photo collection! View Collection
