Here are 5 interesting facts about July 21 in North Dakota history:

1) In 1885, the Northern Pacific Railway completed an extension of its line to Bismarck, making it the western terminus of the railroad. This helped spark development in the city and surrounding areas.

2) In 1910, the first airplane arrived in Fargo, North Dakota. Piloted by James Ward, the plane was part of a barnstorming tour, and it landed on the North Dakota Agricultural College's football field.

3) In 1936, the state's first airport was dedicated in Williston. The airport was established as a Works Progress Administration project and cost $75,100 to build.

4) In 1952, the town of Hankinson experienced a major tornado. The tornado touched down in the town's business district, causing significant damage. Thankfully, no one was killed.

5) In 1990, North Dakota celebrated its centennial as a state. The statehood celebration was marked by events across the state, including a parade in Bismarck and a fireworks display in Fargo.