Complex sentence: The Sudbury region was sparsely inhabited by the Ojibwe people of the Algonquin group for thousands of years prior to the founding of Sudbury following the discovery of nickel ore in 1883 during the construction of the transcontinental railway.
Split into simpler sentences: The Sudbury region was then sparsely inhabited by the Ojibwe people of the Algonquin group. Sudbury was founded following the discovery of nickel ore in 1883 during the construction of the transcontinental railway.