Fertility control early in marriage in Ireland a century ago.
D001721:Birth Intervals; D003710:Demography; D019049:Developed Countries; D005060:Europe; D005193:Family Planning Services; D005298:Fertility; D007494:Ireland; D008393:Marriage; D011153:Population; D011157:Population Dynamics
Birth Spacing; Demographic Factors; Demographic Transition; Developed Countries; Europe; Family Planning--history; Fertility; Ireland; Marital Fertility; Marriage; Marriage Duration; Northern Europe; Nuptiality; Population; Population Dynamics