1579400 Nikolai Vasilyevich Tchaikovsky, 1910; (add.info.: Nikolai Vasilyevich Tchaikovsky (1851 ? 1926) Russian revolutionary. While studying in St. Petersburg, he joined a radical student group which would later be known as the Circle of Tchaikovsky after its most famous member. The group advocated revolutionary socialist ideals which formed the basis of the Narodnik movement.); Universal History Archive/UIG; out of copyright.