Jainism is a non-theistic Indian religion and philosophical system originating in Iron Age India. Jains compose 0.4% (around 4.2 million) of India's population, and are concentrated in the states of Gujarat, Karnataka, Maharashtra, and Rajasthan.
In short, it soon became apparent that a new stage of life â the teenage phase â was becoming a reality in America. American adolescents were displaying traits unknown among children and adults. Although the word teenager did not come into use until decades later, the teenage mindset dawned in the 1920s.
Puberty, Teenagers. Adolescence describes the teenage years between 13 and 19 and can be considered the transitional stage from childhood to adulthood. However, the physical and psychological changes that occur in adolescence can start earlier, during the preteen or tween years (ages 9 through 12). Adolescence can be a time of both disorientation and discovery.