The Vostok (Russian: Восток, translated as "East") was a type of spacecraft built by the Soviet Union. The first human spaceflight was accomplished with Vostok 1 on April 12, 1961, by Soviet cosmonaut Yuri Gagarin. The spacecraft was part of the Vostok programme, in which six crewed spaceflights were made, from 1961–1963. Two further human space flights were made in 1964 and 1965 by Voskhod spacecraft, which were modified Vostok spacecraft. By the late 1960s both were superseded by the Soyuz spacecraft, which are still used as of 2020.