Showing a graph with improvements in child mortality rate and alluding us to believe in the following is wrong.
1. It happened because of living conditions. 2. Healthier diet — made possible through higher productivity in the agricultural sector and overseas trade. 3. age-old war against infectious disease 4. discovery of the germ theory of disease 5. development of antibiotics and vaccines
While I believe that contraception has improved child mortality rate. We should compare child mortality rate of first 2 children over the past 200 years. Child mortality will obviously be high when women have no choice.