The word teenager first appeared in 1941.
But the emancipation of the crazy age group began forty years earlier when new laws freed children from hard labor and kept them in school.
Until then, there was only childhood and adulthood.
At the age of thirteen, a girl became a woman and could marry or enter the workforce and a boy became a man.
Today, most teenagers are treated as children with suppressed adult urges.
Adolescence is the name for the transitional stage of physical and mental human development that occurs between childhood and adulthood, or in other words, their teens.