Voskhod 1 carried the first crew of three people into space in 1964.
Launched on October 12, 1964, Voskhod 1 carried cosmonauts Vladimir Komarov, Konstantin Feoktistov, and Boris Yegorov. The mission lasted just over 24 hours and completed 16 orbits of Earth. It was a modified version of the earlier Vostok spacecraft, redesigned to fit three people inside a very cramped cabin.
The crew included a pilot, an engineer, and a physician, allowing the Soviet Union to emphasize the mission’s scientific and technical value. Because the cabin was so small, the cosmonauts flew without spacesuits, which reduced protection in an emergency.
Voskhod 1 was the first multi-person spaceflight, but it did not include a spacewalk. Voskhod 2 achieved the first spacewalk in 1965, when Alexei Leonov left the spacecraft.