What was the name of the first girl in space?

Valentina Thereskova of the Cosmonaut service of the USSR, officially. There have been claims of at least two who did not survive their mission- one was with a male cosmonaut when something ( possibly a UFO) may have disabled their life-support gear- leading to a long wind-down and eventually death. On the official record, Mme Thereskova ( pronounced Tresh-Kova) was the first Female space farer- of the USSR