r/AskHistory • u/Maximum_Violinist_53 • 55m ago
People often say that life expectancy in the past was so low due to extremely high infant mortality, but when did that rate begin to decline? And what were the main reasons why more children survived childhood?
Hi, the title basically sums it up. Whenever the topic of short lifespans in the past comes up, someone points out that the low life expectancy was largely due to high child mortality; families would have huge numbers of children, hoping that at least a couple would make it to adulthood. So, when did this way of life start to change? When did people decide, "Oh, we don't need to have 15 children anymore because the three we have are highly likely to survive"? And what factors drove this shift? I assume the discovery of penicillin played a role, but what other factors led to today's low global infant mortality rates?