An inland sea of east-central Canada connected to the Atlantic Ocean by Hudson Strait, lying between southern Baffin Island and northern Quebec. James Bay is the southern extension of Hudson Bay, which was explored and named by Henry Hudson in 1610. a large area of sea in northern Canada which is frozen for most of the year. Inland sea, indenting east-central Canada. With an area of 480,000 sq mi (1,243,000 sq km), it is bounded by Nunavut, Manitoba, Ontario, and Quebec. It is connected with the Atlantic Ocean via the Hudson Strait and with the Arctic Ocean via the Foxe Channel. Named for Henry Hudson, who navigated its eastern coast in 1610, the bay and the surrounding area, known as Rupert's Land, were controlled by the Hudson's Bay Company (1821-69). Hudson Bay is shallow, with an average depth of 330 ft (100 m); the coast is mainly a marshy lowland. The islands it contains are administratively part of Nunavut. For conservation purposes, the Canadian government has designated the whole Hudson Bay basin a "mare clausum" (closed sea)
Corporation prominent in Canadian economic and political history. It was incorporated in England (May 2, 1670) to seek the Northwest Passage to the Pacific, to occupy lands adjacent to Hudson Bay, and to carry on commerce. The lands granted to the company, known as Rupert's Land, extended from Labrador west to the Rocky Mountains and from the headwaters of the Red River on the southern Canadian border north to Chesterfield Inlet on Hudson Bay. The company first engaged in the fur trade and established trading posts around Hudson Bay. By 1783 competitors had formed the North West Co., and armed clashes continued until the two companies merged in 1821. The company was given exclusive fur-trade rights until 1858, when the monopoly was not renewed and independent companies entered the fur trade. In 1870 the company sold its territories to the government in exchange for 300,000 and mineral rights to lands around the posts and a fertile portion of western Canada. It remained a large fur-collecting and marketing agency until 1991, with extensive real-estate interests and many department stores