Louis Riel declares a Provisional Government in Saskatchewan, beginning the North-West Rebellion.

Cree and Assiniboine warriors win the Battle of Cut Knife, their largest victory over Canadian forces during the North-West Rebellion.

North-West Rebellion: the four-day Battle of Batoche, pitting rebel Métis against the Canadian government, comes to an end with a decisive rebel defeat.

Mayerthorpe Incident: James Roszko murders four Royal Canadian Mounted Police constables during a drug bust at his property in Rochfort Bridge, Alberta, then commits suicide. It is the deadliest peace-time incident for the RCMP since 1885 and the North-West Rebellion.