Shamanism arised already in stone age and on early steps of religious mentality development it was widely spread among humanity. The word "shaman" in translation from evenk language means "excited, frenzied man". It was put in ethnography by russian researchers of Siberia in XVIII century.
After the Soviet Power was established in Siberia the big antireligious company was began. The Shamans were prohibited to exercise their ritual. Their atributes and holy things were destroyed.
As the result of the late of 30th the active shaman practice was interrupted. Right now the last great Siberian shaman could be seen on the old photos been made during ethnographic expeditions of 20-th, 30-th.