 Canonization takes place under different time and reason; for example in the same day when the translation of the relics is accompanied by a wonder, or only several centuries later.Church historians name either five or seven periods of canonization in Russia; those who state there were five periods typically merge the Nicholas II-period with the Synodal-period and the post-revolutionary with the post-Soviet era.However, the seven period-system is used here for a better understanding of the Russian canonization history.