The ritual taking place at age thirteen for boys and whenever a girl begins her menstrual cycle. The Celts saw this as a time when the child became an adult and was capable of joining in religious rituals and covens. It is celebrated through parties and rituals, a time at which ritual tools are gifted to the young adult.
Coming of age is a young person's transition from adolescence to adulthood. The age at which this transition takes place varies in society, as does the nature of the transition. It can be a simple legal convention or can be part of a ritualistic cycle, similar to those once practiced by many societies.
"Coming of Age" is a first season episode of Star Trek: The Next Generation, first broadcast March 14, 1988. It is episode #19, production #119, teleplay written by Sandy Fries, and directed by Mike Vejar.