sentences:  In 1953, a small settlement was founded near the village of Arzni to accommodate the workers of the nearby hydro power plants, mainly the Arzni Hydro Power Plant which was opened in 1956.Subsequently, the settlement became popularly known as "Silovoy" (the Russian name of the power generator plant).With the establishment of the "Sapfir" stone-processing factory in 1958, along with many other industrial plants, a planned urban settlement was developed in the area of Silovoy settlement.