manitoba day By sukhraaj 1868 HBC sold largest piece of land to the dominion of canada 1869 Red River Métis called for an independent métis republic Dec 8, 1869 Provisional government consisting of english and french speaking métis was formed Mar 4, 1870 Thomas Scott, Irish immigrant who was a member of the canadian party was executed by a firing squad May 12, 1870 The Manitoba act came into law and was passed by parliament and received by royal assent Jul 15, 1870 The act was officially proclaimed when manitoba joined as 5th province Mar 10, 1992 Ottawa recognizes Louis Riel as founder of Manitoba