Category:Boys in 2021 by country

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Boys by country by year
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
 See also category: Girls in 2021 by country.

Definitions

[edit]
  1. Babies (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).