1. The First State Capitol: On May 10, 1884, the newly constructed State Capitol building in Bismarck was dedicated. This building served as North Dakota's first official state capitol until it burned down in 1930.

2. Early Radio Broadcast: May 10, 1922, marked the first time a radio broadcast was made in North Dakota. The Fargo Forum broadcast the arrival of President Warren G. Harding in Fargo.

3. Record Snowfall: May 10, 1935, North Dakota experienced a record-breaking snowfall. Over 15 inches of snow fell in some areas, causing significant damage to crops and property.

4. Medicinal Wine: On May 10, 1917, the North Dakota Legislature passed a law allowing the production and sale of medicinal wine. The law allowed physicians to prescribe wine for certain medical conditions and was in effect until the end of national prohibition in 1933.

5. The Dakota Territory: May 10, 1869, marked the day when the Dakota Territory was officially created. The territory included what is now North and South Dakota, and parts of Wyoming and Montana. The territory eventually became the states of North and South Dakota in 1889.