1. North Dakota became a state: July 1, 1890 was a momentous day in North Dakota history as it marked the day the state officially joined the Union as the 39th state. To celebrate, the citizens of the state held parades, picnics, and other festivities to mark the occasion.

2. Dakota Territory was split: Prior to statehood, North Dakota was part of the Dakota Territory, which was established in 1861. On February 22, 1889, President Benjamin Harrison signed a bill that split the territory in two, creating the states of North Dakota and South Dakota.

3. The state bird was officially designated: On July 1, 1947, the western meadowlark was officially designated as the state bird of North Dakota. The bird is known for its melodious song and bright yellow plumage.

4. The state flower was chosen: In 1907, North Dakota designated the wild prairie rose as its state flower. The flower is found throughout the state and is known for its delicate pink petals and sweet fragrance.

5. Theodore Roosevelt visited North Dakota: On July 1, 1900, future president Theodore Roosevelt visited the Dakota Territory, which at the time included what would become the state of North Dakota. Roosevelt was a rancher and conservationist who fell in love with the region's rugged beauty and wildlife. He later wrote about his experiences in his book "Hunting Trips of a Ranchman."