Historically, Buddhism was incorporated into Siberia in the early 17th century. Buddhism is considered to be one of Russia's traditional religions and is legally a part of Russian historical heritage. Besides the historical monastic traditions of Buryatia, Kalmykia and Tuva, Buddhism is now widespread all over Russia, with many ethnic Russian converts.
The main form of Buddhism in Siberia is the Gelukpa school of Tibetan Buddhism, informally known as the "yellow hat" tradition, with other Tibetan and non-Tibetan schools as minorities. Although Tibetan Buddhism is most often associated with Tibet, it spread into Mongolia, and via Mongolia into Russia.