The first comprehensive life-span view was developed by

The first comprehensive lifespan view was developed by Erik Erikson. It is called the Erikson's stages of psychosocial development which identifies eight stages where a developing individual should be able to go through from infancy to adulthood. These stages are infancy (0 to 23 months), early childhood (2 to 4 years), preschool years (4 to 5 years), school age (5 to 12 years), adolescence (13 to 19 years), early adulthood (20 to 39 years), adulthood (40 to 64 years) and maturity (65 to death). In each stage, specific values, psychosocial crisis, significant relationship and existential question are being specified by Erikson.

The soviet union beat the us to the first successful launch, with the october 4, 1957, orbiting of sputnik 1, and later beat the us to have the first human in earth orbit, yuri gagarin, on april 12, 1961. the "race" peaked with the july 20, 1969, us landing of the first humans on the moon with apollo 11