Question: Vostok 2, was a Soviet space mission which carried cosmonaut Gherman Titov into orbit for a full day on which date, Titov's number of orbits and flight time would be surpassed, until by American astronaut Gordon Cooper's Mercury-Atlas 9 spaceflight in May 1963?
Sentence (from "Soyuz TM-4"): It was launched in December 1987, and carried the first two crew members of the third long duration expedition, Mir EO-3.
Relevant evidence: No