Start with why Marxist ideologies would appeal to 1924 Russia in the first place (hint: look into serfdom and think about it's parallels to the industrial era social hierarchy). From there analyze the context of the event, what was going on in the world and how does this affect my subject of study? There are plenty of pivotal events that you will be able to find if you dig. Also a theme you may want to reinforce is that Russia was probably the first large nation to successfully convert to Communism. What were the trends that lead to Communism's suppression in other industrial powers at the time that perhaps didn't apply in Russia?