The exhibition Mir Iskusstva: Russia’s Age of Elegance at the Princeton University Art Museum coincides with several recent exhibitions on aspects of Russian art, mostly contemporary, that have been inspired by last year’s big Russia! show at New York’s Guggenheim Museum. The Princeton exhibition stands out, however, as a crucially important addition to the Guggenheim blockbuster, because it represents a major historic epoch in Russian art and culture that was almost overlooked by the organizers...