Results of the 1917 Russian Constituent Assembly election
There are numerous, conflicting accounts on the outcome of the November–December 1917 election to the All-Russian Constituent Assembly. The Constituent Assembly election, which took place in the midst of the First World War and the October Revolution, was the largest exercise of universal suffrage in the history of mankind until that date.
Source: Wikipedia — Results of the 1917 Russian Constituent Assembly election (CC BY-SA 4.0)