Fur trade Russia exported raw furs, consisting in most cases of the pelts of martens, beavers, wolves, foxes, squirrels and hares. Between the 16th and 18th centuries, Russians began to settle in Siberia, a region rich in many mammal fur species, such as Arctic fox, lynx, sable, sea otter and stoat (ermine). In a search for the prized sea otter pelts, first used in China, and later for the northern fur seal, the Russian Empire expanded into North America, notably Alaska. From the 17th through the second half of the 19th century, Russia was the world's largest supplier of fur. The fur
PC Paintbrush competitor, Mouse Systems, bundled their mice with Mouse Systems' "PCPaint" in 1984. At Christmas 1984, amidst record sales volumes in the home computer market, Microsoft had created a "sidecar" bundle for the PCjr, complete with their mouse, but with their competitor's product, "PCPaint". With the release of Paintbrush the following year, Microsoft no longer needed to sell the software of their competitor in the PC mouse hardware market in order to have the same market advantage. Microsoft's mechanical mice outsold Mouse Systems' optical mice after a few years, but "PCPaint" outsold Paintbrush until the late 1980s. Unlike most other applications