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NDNorth Dakota History
North Dakota at a glance
North Dakota was admitted to the Union on 1889, making it the 40th state. It joined the country 113 years after the Declaration of Independence. Its capital Bismarck has been the seat of state government for most of the state's history.
Native peoples
For thousands of years before European contact, Indigenous peoples lived across what is now North Dakota. Multiple distinct cultures developed in response to the region's geography — coastal peoples, plains peoples, river-valley peoples, mountain peoples — each with their own languages, governance, and trade networks. European colonization disrupted these civilizations dramatically, often through disease, displacement, and forced removal. Today, North Dakota's Native heritage is preserved in place names, tribal nations within state borders, and ongoing cultural practices.
French colonial era
French explorers and traders moved through North Dakota as early as the 17th century. French influence is visible in place names, Catholic religious traditions, and (where applicable) Cajun or Creole cultures. France controlled vast portions of central North America before losing the territory to Spain (1762), then to the US (Louisiana Purchase, 1803).
The Louisiana Purchase (1803)
North Dakota was part of the territory the United States acquired from France in 1803 for $15 million — the Louisiana Purchase, which doubled the size of the country overnight. The purchase set in motion decades of westward exploration and settlement, including the Lewis and Clark Expedition (1804-1806).
Path to statehood
The path from European exploration to statehood typically took decades. North Dakota was admitted to the Union on 1889, after meeting the requirements set by Congress: sufficient population, a written constitution, and the consent of Congress. The process from initial settlement to statehood was the 103rd time the US expanded.
The modern era
Today North Dakota has a population of under 1 million and is one of the mid-sized states in the country. The capital is Bismarck; the largest city is Fargo. The economy benefits significantly from oil and natural gas production. Agriculture remains an important sector of the state economy. The political lean has shifted over time and now leans reliably Republican.
Key historical sites in North Dakota
North Dakota preserves its history through state parks, national monuments, historic districts, and museums. Battlefields, colonial towns, mission sites, Native American heritage areas, and Civil Rights landmarks (where applicable) anchor the state's heritage tourism. Visit the state's official tourism site for a current list.
Bordering states
North Dakota shares borders with 3 other US states.
Learn US history through daily puzzles
Statedoku uses statehood era, Confederate or Union role, and admission years as recurring constraints. After a month of daily play, you'll know exactly when and how each state joined the Union.
Play today's puzzle →Common questions about North Dakota history
When did North Dakota become a state?
North Dakota became a state in 1889, making it the 40th state admitted to the Union.
Was North Dakota part of the Confederacy?
No, North Dakota was not part of the Confederacy.
Was North Dakota part of the Louisiana Purchase?
Yes, North Dakota was acquired by the US as part of the 1803 Louisiana Purchase from France.
Did Spain or France colonize North Dakota?
Yes, French exploration and settlement marked early North Dakota history.
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