Category:20th-century adolescent boys of the United States

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Definitions

[edit]
  1. Babies (male) (birth to 24 months)
  2. Boys (2–13 years [puberty])
  3. Adolescent boys (13–17 years)
  4. Men (18+ years)

Definitions come from, but are slightly modified from, the Physical stages of human life as found at Wikipedia:Human development (biology).