May 9-12 - Canadian government forces inflict decisive defeat on Métis rebels at the Battle of Batoche.
July 6 - Louis Pasteur successfully tests his vaccine against rabies. The patient is Joseph Meister; a boy who was bitten by a rabid dog.
September 2 - In Rock Springs, Wyoming, 150 white miners attack their Chinese coworkers, killing 28, wounding 15, and forcing several hundred more out of town.