At the height of the Great Terror in 1937, Joseph Stalin took a break from the purges to edit a new textbook on the history of the USSR. Published shortly thereafter, the Short History of the USSR amounted to an ideological sea change. Stalin had literally rewritten Russo-Soviet History, breaking with two decades of Bolshevik propaganda that styled the 1917 Revolution as the start of a new era. In its place, he established a thousand-year...