During the late 18th century and early 19th century, there was considerable social upheaval as a largely agrarian society was transformed by technological advances and increasing mechanization, which was the Industrial Revolution.

During the late 18th century and early 19th century, as partners with the Cree in the fur trade, the Saulteaux migrated northwest into the Swan River and Cumberland districts of west-central Manitoba, and into Saskatchewan along the Assiniboine River, as far its confluence with the Souris ( Mouse ) River.

During the late 18th century and early 19th century, the heavy concentration of paper mills and the use of dyes near Fitchburg resulted in pollution that notoriously turned the river various colors downstream from the factories.

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