The principal source for Russian folk-tales is the great collection of Afanásev, a coeval of Rybnikov, Kireyevski, Sakharov, Bezsonov, and others who all from about 1850 to 1870 laboriously took down from the lips of the peasants of all parts of Russia what they could of the endless store of traditional song, ballad, and folk-tale. These great collectors were actuated only by the desire for accuracy; they appended laboriously erudite notes; but they were not literary men and did not sophisticate, or improve on their material.