(1780) Spurred on by the Dakota, the Mandans waged several battles against the Assiniboine. This was closely following the dissolution of an alliance between the Mandan and the Assiniboine.
#At home in southwest Manitoba for centuries The Assiniboine were once a Nation that occupied a territory that spanned the prairie provinces (including southwest Manitoba) and parts of the northern United States. Once numbering 10,000 strong, the Assiniboine spent at least two centuries hunting bison on the plains surrounding Turtle Mountain, and in later years actively participated in the fur trade on the Souris River. [[inline:left:assiniboine-camp]] ##Legend The Assiniboine were members of the Yanktonai arm of the Dakota Nation, who lived in the western forests of what is now Minnesota. The Assiniboine broke off from the Yanktonai sometime before 1640. Accounts of the events which caused the bitter split between them and the Dakota Nation were recorded in the journals of early explorers and fur traders. Legend has it that jealousy and passion over a women lay at the root of the division. A young warrior seduced and kidnapped the wife of an important man. This caused a conflict which escalated until one group, numbering about a thousand lodges, left for the north to the Lake of the Woods region where they sought out the Dakota’s traditional enemies, the Cree. They pledged that they would fight against the Dakota, in this way establishing an informal alliance. ##The word "Assiniboine" Sources differ as to how the Assiniboine received their name. Some say it was the Cree who called this new Nation Assee-nee-pay-tock. Some say the word “Assiniboine” derives from the Ojibway word assini-pwa. Either way, the translation works out to be …
The Mandan Trail was a primary artery of travel and trade between the Assiniboine River forts and the Missouri River where the Mandan First Nations lived.