Fur trade marten furs could generate in international markets spurred a "fur fever" in which many Russians moved to Siberia as independent trappers. From 1585 to 1680, tens of thousands of sable and other valuable pelts were obtained in Siberia each year. The primary way for the Muscovite state to obtain furs was by exacting a fur tribute from the Siberian natives, called a "yasak". "Yasak" was usually a fixed number of sable pelts which every male tribe member who was at least fifteen years old had to supply to Russian officials. Officials enforced "yasak" through coercion and by taking hostages, usually
Fur trade the first organized attempt to control the fur trade in New France. In 1599 he acquired a monopoly from Henry IV and tried to establish a colony near the mouth of the Saguenay River at Tadoussac. French explorers, like Samuel de Champlain, voyageurs, and Coureur des bois, such as Étienne Brûlé, Radisson, La Salle, and Le Sueur, while seeking routes through the continent, established relationships with Amerindians and continued to expand the trade of fur pelts for items considered 'common' by the Europeans. Mammal winter pelts were prized for warmth, particularly animal pelts for beaver wool felt hats, which were