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
PC Paintbrush many simulations of real-world media, such as oil paints, watercolors, and colored pencils, and it had a number of new smudge tools that took advantage of the increased color depth. A version called "Publisher's Paintbrush" allowed import of images via TWAIN-based capture devices like hand-held and flatbed scanners. Both "PC Paintbrush" and "Publisher's Paintbrush" were supplemented and later replaced with the more budget-oriented "PhotoFinish". After ZSoft was sold, resold, and then finally absorbed by The Learning Company, an extremely low priced and simple graphics application was released under the title "PC Paintbrush Designer". PC Paintbrush PC Paintbrush is graphics editing