 The program was the first program to put humans into space, with Yuri Gagarin becoming the first man in space on April 12, 1961 aboard the Vostok 1.Gherman Titov Became the first person to stay in orbit for a full day on August 7, 1961 aboard the vostok 2.Valentina Tereshkova became the first woman in space on June 16, 1963 aboard the Vostok 6.