2nd--ROUGH DRAFT TIMELINE CHART. By sanjay Period: Jan 1, 1973 to Dec 31, 2026 2nd--ROUGH DRAFT TIMELINE CHART. FROME AGE 13 UP TO AGE 65 YEARS. Jul 4, 1974 ADOLESCENCE;--Cognitive;--Egocentrism e.g imaginary audience. by age 14. ADOLESCENCE;--From age 13 up to age 17. Jun 1, 1975 ADOLESCENCE;--, Biosocial;- Physical secondary sex characteristics dev.e.g. body shape, men's beard. by age 15. Aug 8, 1976 ADOLESCENCE;-- Psychosocial;--Gender identity e.g 'being men' by age 16. Sep 1, 1979 EMERGING ADULTHOOD;--Biosocial;-Strong & attractive body e.g. maximum height. by age 19. EMERGING ADULTHOOD;-- From age 18 to 25. Apr 2, 1980 EMERGING ADULTHOOD;--Cognitive.;-- Cognitive Flexibility;Working together e.g. working with close classmate for study. by age 20. May 5, 1982 EMERGING ADULTHOOD;--Psychosocial.;--Intimacy e.g friendship with classmate & neighboure. by age 22. Mar 5, 1995 ADULTHOOD;--Psychosocial.;--Family bonds e.g advise & emotional supports from close family members.by age 35. ADULTHOOD;--From age 25 to 65. Feb 10, 2000 ADULTHOOD;--Biosocial.;--Physical exercise e.g play sports. by age 40. Oct 8, 2005 ADULTHOOD;--Cognitive.;--Better strategies e.g. communication to lower stress. by age 45.