Iowa - History - Early Exploration and Trade, 1673–1808

Early Exploration and Trade, 1673–1808

The first known European explorers to document Iowa were Jacques Marquette and Louis Jolliet who traveled the Mississippi River in 1673 documenting several Indian villages on the Iowa side. The area of Iowa was claimed for France and remained a French territory until 1763. The French, prior to their impending defeat in the French and Indian War, transferred ownership to their ally, Spain. Spain practiced very loose control over the Iowa region, granting trading licenses to French and British traders, who established trading posts along the Mississippi and Des Moines Rivers.

Iowa was part of a territory known as La Louisiane or Louisiana, and European traders were interested in lead and furs obtained by Indians. The Sauk and Meskwaki effectively controlled trade on the Mississippi in the late 18th century and early 19th century. Among the early traders on the Mississippi were Julien Dubuque, Robert La Salle, and Paul Marin. Along the Missouri River at least five French and English trading houses were built prior to 1808. In 1800, Napoleon Bonaparte took control of Louisiana from Spain in a treaty.

After the 1803 Louisiana Purchase, Iowa was placed under United States control. Much of Iowa was mapped by Zebulon Pike in 1805, but it was not until the construction of Fort Madison in 1808 that the U.S. established tenuous military control over the region.