 Nyora kupfuurira kweiyi ndima - Berzin akaberekerwa mumhuri yevarimi veLatvia muHumambo hweRussia. Akapedza seminari yokudzidzisa, uye ipapo akashanda somudzidzisi womumusha, uye akavamba kuparadzira kuparidzira kweshanduko pakati pevarimi. Akabatana neRussian Social Democratic Labour Party muna 1902. Muna 1904, akasungwa ndokuendeswa kuOlonets Governorate, asi akapukunyuka muna 1905, uye akashanda semunhu wezvematongerwe enyika mudunhu reBaltic panguva ye1905 Russian Revolution. Muna December 1905, akasungwazve, neboka raitungamirirwa naGeneral Orlov. Asunungurwa mujeri muna 1907, akagara muSt Petersburg ndokutora basa somunyori wekomiti yeSt Petersburg yeRussian Social Democratic Labour Party RSDLP. Muna 1907 akanga ari nhume ye5th Congress yeRussian Social Democratic Labour Party, muLondon. Akatama muna 1908, uye akagara Switzerland, France, Belgium, Britain neUSA. 