The infant mortality rate in the U.S. is about 1/50 of what it was in 1850. This is a tremendous drop in the number of children dying. This drop in child deaths led to the greatest social upheaval in history, the demographic transition.
The infant mortality rate in the U.S. is about 1/50 of what it was in 1850. This is a tremendous drop in the number of children dying. This drop in child deaths led to the greatest social upheaval in history, the demographic transition.