Materials of the II All-Russian Scientific and Practical Conference with international participation. The collection includes materials submitted to the conference organizing committee. They highlight the military-political and socio-economic aspects, culture, spiritual and everyday life of society in eastern Russia during the military-revolutionary period of 1917-1922, as well as historical and biographical studies about the participants in those events. Photos and documents illustrating individual materials of the collection are presented (some are published for the first time).