Not space stations, but... >> Apollo–Soyuz was the first crewed international space mission, carried out jointly by the United States and the Soviet Union in J

Not space stations, but... >> Apollo–Soyuz was the first crewed international space mission, carried out jointly by the United States and the Soviet Union in July 1975. Millions of people around the world watched on television as a United States Apollo spacecraft docked with a Soviet Soyuz capsule. https://en.m.wikipedia.org/wiki/Apollo%E2%80%93Soyuz#:~:text=Apollo%E2%80%93Soyuz%20was%20the%20first,with%20a%20Soviet%20Soyuz%20capsule https://en.m.wikipedia.org/wiki/Apollo%E2%80%93Soyuz#:~:text.... Edit - by comparison, for sibling comment >> Soyuz 13 (Russian: Союз 13, Union 13) was a December, 1973, Soviet crewed space flight https://en.m.wikipedia.org/wiki/Soyuz_13 https://en.m.wikipedia.org/wiki/Soyuz_13