Five years after the Russian Revolution, a couple of youngsters from Ukraine drove around the frozen streets of Petersburg, hurling copies of their manifesto Eccentrism into the streets. The former imperial capital was still called Petrograd, renamed in 1914 to sound less German at the start of the Great War, but these young firebrands proclaimed it 'Eccentropolis', the capital of their bid to topple 'art with a capital A', and replace it with...