1955 State of Vietnam referendum Đại, and police went door-to-door, warning people of the consequences of failing to vote. After his brother Ngô Đình Nhu successfully rigged the poll, Diệm proclaimed himself president of the newly created Republic of Vietnam. The defeat of the French Army at Điện Biên Phủ in 1954, followed by the Geneva Accords, led to a divided Vietnam. The French-backed State of Vietnam, led by former Emperor Bảo Đại, provisionally held control south of the 17th parallel. Hồ Chí Minh's Viet Minh held the north under the Democratic Republic of Vietnam, which Hồ Chí Minh had proclaimed in 1945. The agreements
49th parallel north the 1846 Oregon Treaty. This agreement divided the Oregon Country between British North America and the United States by extending the 49th parallel boundary to the west coast, ending in the Strait of Georgia; it then circumvents Vancouver Island through Boundary Pass, Haro Strait, and the Strait of Juan de Fuca. This had the side effect of isolating Point Roberts, Washington. Although parts of Vancouver Island and parts of Eastern Canada are south of the 49th parallel, and parts of the United States (Alaska, Northwest Angle) are north of it, the term "49th parallel" is sometimes used metonymically to refer