About Phạm Tuân
Phạm Tuân is a retired Vietnamese Air Force fighter pilot and cosmonaut. He became the first Vietnamese cosmonaut, and the first person of Asian origin to be in space when he was launched aboard the Soyuz 37 mission as an Interkosmos research cosmonaut. He was awarded the title Hero of the Soviet Union. In 1980, Tuân was awarded the "Vietnam Labor Hero" distinction. This claim, which would be the alleged ‘only’ B-52 downed in air-to-air combat during the war is unclear according to U.S. record, which claims that this B-52 was downed by a surface-to-air missile.
Biography source: Wikipedia. The profile adds birthday-specific historical context from the Celebs Birthday Today editorial database.