1. North Dakota became a state.

On July 3, 1889, President Benjamin Harrison signed the Enabling Act that allowed the territories of North and South Dakota, Montana and Washington to draft constitutions in preparation for statehood. North Dakota officially became a state on November 2, 1889.

2. The Northern Pacific Railroad was completed.

The Northern Pacific Railroad, which connected the Great Lakes region to the Pacific Northwest, was completed on July 3, 1883. The railroad was instrumental in the development of North Dakota, as it allowed for the transportation of goods and people across the state.

3. The Battle of Killdeer Mountain occurred.

On July 3, 1864, the Battle of Killdeer Mountain took place in western North Dakota during the Dakota War of 1862. Dakota warriors under the leadership of Anpetu-Tokeca, or Four Bears, attacked a Union Army supply train but were ultimately defeated by the Union troops.

4. The Mandan Horse Racing Association was established.

On July 3, 1908, the Mandan Horse Racing Association was established in Mandan, North Dakota. The association held horse races in Morton County each year until World War II, and was a popular attraction for locals and visitors alike.

5. The first North Dakota State Fair was held.

On July 3, 1897, the first North Dakota State Fair was held in Fargo, North Dakota. The fair featured exhibits of agricultural and industrial products, as well as horse racing, music performances, and other entertainment. The fair has since become an annual event and is now held in Minot, North Dakota.