History By Denkey 1868 Hudson’s Bay Company land sale 1869 the Red River Métis called for an independent Métis republic Dec 8, 1869 Seizing upper fort Garry Apr 4, 1870 The execution of Thomas Scott May 12, 1870 The Manitoba Act came into law Jul 15, 1870 The Manitoba act officially proclaimed Apr 10, 1992 Louis Riel becomes the founder of Manitoba Apr 10, 1992 Louis Riel becomes the founder of Manitoba