Fort Radisson was the capital of the Confederation of Indiana from 1782 to 1881. Located on the east bank of the Mississippi River, Fort Radisson was originally named Kaskaskia when it was founded by French fur traders in 1686. The town served as an important agricultural center, sending wheat flour and corn meal south to New Orleans. Following the North American Rebellion of 1775 - 1778, the first group of exiled colonists to take the Wilderness Walk in 1780 reached the settlement in the late spring and paused to reprovision before setting out across the Mississippi.
Under the Britannic Design, Kaskaskia became the capital of the Confederation of Indiana. The first Governor-General, Pierre Concordé, was sworn in there on July 2, 1782. He renamed the settlement Fort Radisson after Pierre-Esprit Radisson, an early French fur trader and co-founder of Hudson's Bay Company. Fort Radisson was the site of celebrations when it was learned in 1795 that the Trans-Oceanic War had broken out between Spain and Great Britain.
Fort Radisson was subjected to periodic flooding in the 19th century, and after a major flood in 1881 that saw the Mississippi shift its bank east of the city, the capital of Indiana was moved to Michigan City, leaving Fort Radisson to become a backwater. Although the city is now on the Southern Vandalian bank of the Mississippi, it is still part of Indiana.