During the rapid growth in population, parents had many children, among which the family resources had to be divided. Thus, there was less money or other resources for food, medicine, and housing for each child's health and comfort. In addition, it was more difficult to improve children's lives through education. Let's say roughly half the world's people were affected to an extent of 1 life-year each, for a total of 3 billion life-years.
Human News aims to devote 1 character to each 40,000 life-years, or 1000 average lives. Thus, this story can have about (3 billion) / 40,000 = 75,000 characters. Since this article is much shorter, there is room for many related articles in the future.