1. In 1950, President Harry Truman signed the Flood Control Act, which authorized the construction of the Garrison Dam on the Missouri River. When completed in 1966, the dam would create Lake Sakakawea, the third largest reservoir in the United States.

2. On May 22, 2001, the U.S. Postal Service issued a commemorative stamp honoring Lewis and Clark's journey through North Dakota. The stamp features a portrait of Meriwether Lewis and William Clark, as well as an image of the Missouri River.

3. In 1882, the Northern Pacific Railroad completed its line through North Dakota, connecting Fargo with the Pacific Northwest. The railroad played a significant role in the development of the state's economy and settlement patterns.

4. North Dakota's first state capitol building was completed on May 22, 1884. The two-story brick building, located in Bismarck, served as the seat of government until 1934, when it was replaced by the current capitol building.

5. In 1903, the "Great Northern Outing" took place in Grand Forks. The event featured President Theodore Roosevelt, who spoke to a crowd of over 20,000 people about the importance of conservation and preservation of natural resources. The outing also included a parade, concerts, and other festivities.