Five external markers of adulthood, self-perceived adulthood at age 27, and identity achievement at ages 27, 36, and 42 were explored for 95 women and 94 men in a cohort of Finns born in 1959. Earlier transition to adulthood in family life (moving from the parental home, entering marriage or cohabitation, having a child) anticipated higher identity achievement in adulthood. However, later transition to adulthood in working life, composed of the first certification conferral, and entering a full-time job were associated with higher identity achievement. Both components correlated with the higher level and thus the length of education. Self-perceived adulthood was unrelated to the age of achieving external markers of adulthood but was positively associated with identity achievement in women. (Contains 3 tables and 3 figures.)