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
5026 Martes They also live in the forests near the discovering Kleť Observatory. The official naming citation was published by the Minor Planet Center on 22 June 1999 (). 5026 Martes 5026 Martes, provisional designation , is a carbonaceous asteroid from the inner region of the asteroid belt, approximately 9 kilometers in diameter. It was discovered on 22 August 1987, by Czech astronomer Antonín Mrkos at Kleť Observatory in the Czech Republic. It is named after the two weasel-like animal species: pine marten and beech marten. "Martes" is the namesake member of a small asteroid family, named the Martes family. It orbits