The correct answer is average age of marriage
The 50's, or “Golden Years” became known as the time of transitions. The change in the profile of society was due to the fact of the growing economic prosperity experienced by the United States (and some other countries) with the end of the Second World War, which created a feeling of optimism and hope for everyone.
This period was marked by important political conflicts, such as the Cold War, in addition to numerous technological, communicational and, mainly, scientific advances. It was during the 1950s that the space race between the USA and the USSR took place, which resulted in the arrival of man on the moon for the first time.
