The official name of this flight was :- ASTP (Apollo-Soyuz Test Project) in the USA- EPAS (Экспериментальный полёт «Аполлон» — «Союз») in the USSR.
#OTD 1962 Cosmonaut Andriyan Nikolayev becomes the 5th human to orbit the Earth when Vostok 3 launches. (Here during Apollo-Soyuz training)