On this day in 1961 – Nov. 29 – Enos, a chimpanzee, was launched into space aboard the Project Mercury: Mercury-Atlas 5 Mission.
The name given to “Enos,” the chimp selected to fly the MA-5 mission, in Hebrew means “man”. Enos’s backups were (in order possible call-up) Duane, Jim, Rocky and Ham (the MR-2 veteran). Enos was from Cameroon, Africa, (originally called Chimp # 81), and was purchased by the USAF on April 3, 1960. His flight was preceded by both fellow chimp Ham and astronaut Alan Shepard who had been launched into space but had not orbited the earth.
(Source: The Denver Post)