1. In 1964, the National Park Service established the Theodore Roosevelt National Memorial Park near Medora, North Dakota. The park serves as a tribute to the 26th President of the United States, Theodore Roosevelt, who spent much of his time in North Dakota as a rancher and conservationist.

2. On June 17, 1876, a group of Lakota Sioux and Cheyenne warriors defeated General George Armstrong Custer and his Seventh Cavalry at the Battle of the Little Bighorn in Montana. Although the battle did not take place in North Dakota, it had a significant impact on the state and its Native American communities.

3. In 1892, Fargo became the first city in North Dakota to establish a public library. The library was initially located on the second floor of Fargo's city hall and contained around 2,500 books.

4. On June 17, 1910, the North Dakota State Capitol building in Bismarck was destroyed by fire. Many of the state's important documents and artifacts were lost in the blaze, and it took several years for the state to rebuild the capitol.

5. In 1932, North Dakota's state flag was officially adopted. The flag features a bald eagle and a shield with a sun rising over a river, symbolizing the state's natural resources and pride in its heritage.