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 PC Paintbrush PC Paintbrush is graphics editing software created by the ZSoft Corporation in 1984 for computers running the MS-DOS operating system. It was originally developed as a response to the first paintbrush program for the IBM PC, "PCPaint", which had been released the prior year by Mouse Systems, the company responsible for bringing the mouse to the IBM PC for the first time. In 1984, Mouse Systems had released "PCPaint" to compete with Apple Paint on the Apple II computer and was already positioned to compete with "MacPaint" on Apple Computer's new Macintosh platform. Unlike "MacPaint", "PCPaint" enabled users