1959 December 31 –
Mercury astronauts complete classroom training. – . Nation: USA. Program: Mercury. Summary: Mercury astronauts completed basic and theoretical studies in their training program and started practical engineering studies.
The original Mercury astronauts are pictured around a table admiring an Atlas model. Standing, left to right are Alan B. Shepard, Jr., Walter M. Schirra, Jr., and John H. Glenn, Jr.; sitting, left to right are Virgil I. Grissom, M. Scott Carpenter, Donald Slayton, and L. Gordon Cooper, Jr.