It has been refuted already, that the life expectancy was this low, with the explanation for the error being given as stillbirths affecting the average. As far

It has been refuted already, that the life expectancy was this low, with the explanation for the error being given as stillbirths affecting the average. As far as I know, even 500 years ago it wouldn't have been that difficult to reach age 70 once you've survived your childhood.