Mathieu Da Costa (depending on the language of the documents that mention his name, also known as “Mateus Da Costa,” “Mathieu de Coste,” “Matheus de Cost” and “een Swart genamd Matheu”), interpreter (dates and places of birth and death unknown). Da Costa is one of the most fascinating and elusive figures in the early history of Canada. Historians consider him the first Black person known to have visited Canada, probably in the company of Pierre Dugua de Mons and Samuel de Champlain. But many aspects of his life remain unclear or unknown.
York Factory, also known as York Fort, Fort Bourbon, and Kischewaskaheegan by Indigenous people, was a post on the Hayes River near its outlet to Hudson Bay, in what is now Manitoba. During its life, it served as a trading post and later as a major administrative centre in the Hudson’s Bay Company’s fur trade network. It also bore witness to the largest naval battle to take place in Arctic Canada.