May 17 1642
Fort Ville-Marie was a French fortress and settlement established in May 1642 by a company of French settlers, led by Paul de Chomedey de Maisonneuve, on the Island of Montreal in the Saint Lawrence River at the confluence of the Ottawa River, in what is today the province of Quebec, Canada. Its name is French for "City of Mary", a reference to the Blessed Virgin Mary.
May 22 1784
Mississaugas of the Credit First Nation (Ojibwe: Mazina'iga-ziibing Misi-zaagiwininiwag, meaning: "Mississauga people at the Credit River") is a Mississauga Ojibwa First Nation located near Brantford in south-central Ontario, Canada. In April 2015, MCFN had an enrolled population of 2,330 people, 850 of whom lived on the MCFN Reserve. The first nation governs the 2,392.6-hectare parcel of New Credit 40A Indian Reserve known as Reserve 40B near Hagersville, Ontario. This reserve is located near the Six Nations of the Grand River in Brantford.
11 October–12 May 1869-1870
The Red River Rebellion (French: Rébellion de la rivière Rouge), also known as the Red River Resistance, Red River uprising, or First Riel Rebellion, was the sequence of events that led up to the 1869 establishment of a provisional government by Métis leader Louis Riel and his followers at the Red River Colony, in the early stages of establishing today's Canadian province of Manitoba. It had earlier been a territory called Rupert's Land and been under control of the Hudson's Bay Company before it was sold.
May 23 1873
The North-West Mounted Police (NWMP) was a Canadian para-military police force, established in 1873, to maintain order in the new Canadian North-West Territories (NWT) following the 1870 transfer of Rupert’s Land and North-Western Territory to Canada from the Hudson’s Bay Company, the Red River Rebellion and in response to lawlessness, demonstrated by the subsequent Cypress Hills Massacre and fears of United States military intervention. The NWMP combined military, police and judicial functions along similar lines to the Royal Irish Constabulary. A small, mobile police force was chosen to reduce potential for tensions with the United States and First Nations. The NWMP uniforms included red coats deliberately reminiscent of British and Canadian military uniforms.

