This is a typewritten document. G. Navannamjil wrote this chapter about the October Revolution and revolutionary movements in Mongolia (1917-1919). Extent and format of original material: Typewritten. Owner(s) of original material: Mongolian Academy of Sciences, Institute of History and Ethnography. Author(s) of original material: G. Navaannamjil. Original institution reference: F-4, D-1, HN-68d.