Oskar Rabin was an organiser of the dissident Bulldozer Exhibition (Бульдо́зерная вы́ставка) an unofficial art exhibition on a vacant lot in the Belyayevo urban forest by Moscow avant-garde artists on September 15, 1974.
The exhibition was forcefully broken up by a large police force that included bulldozers and water cannons: this is considered the most effective action of the civil disobedience in the USSR. Shortly thereafter, he was exiled from the USSR together with his wife, a painter too, Valentina Kropivnitskaya. You can discover the life and works of Valentina in the doc In search of a lost paradise.
Having settled in France, Oscar managed to gain international fame with his paintings. Oscar died in Paris – at age 90 – in 2018.