when did humans first occupy the international space station
Expedition 1 Expedition 1 was the first long-duration stay on the International Space Station (ISS). The three-person crew stayed aboard the station for 136 days, from November 2000 to March 2001. It was the beginning of an uninterrupted human presence on the station which continues as of November 2017. Expedition 2, which also had three crew members, immediately followed Expedition 1.
Yuri Gagarin Yuri Alekseyevich Gagarin [note 1] (Russian: Ю́рий Алексе́евич Гага́рин, IPA: [ˈjʉrʲɪj ɐlʲɪˈksʲejɪvʲɪtɕ ɡɐˈɡarʲɪn]; 9 March 1934 – 27 March 1968) was a Soviet pilot and cosmonaut. He was the first human to journey into outer space when his Vostok spacecraft completed an orbit of the Earth on 12 April 1961.