Question: What was a pair of revolutions in Russia in 1917 which dismantled the Tsarist autocracy and led to the rise of the Soviet Union, that during this time period a form of rusk made with eggs and baked twice was moved to other parts of the world?
Sentence (from "Russian Revolution"): The Russian Empire collapsed with the abdication of Emperor Nicholas II and the old regime was replaced by a provisional government during the first revolution of February 1917 (March in the Gregorian calendar; the older Julian calendar was in use in Russia at the time).
Relevant evidence: No