The International Peace Garden is a 3.65-square-mile (9.5 km2) park located adjacent to the International Peace Garden Border Crossing along the Canada–United States border between the province of Manitoba and the state of North Dakota. It was established on July 14, 1932, as a symbol of the peaceful relationship between the two countries.The slogan Peace Garden State originates from the International Peace Garden, and was added to vehicle registration plates of North Dakota in 1956, In the next year, the North Dakota Legislative Assembly made the slogan an official state nickname.

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