A simple challenge for atheists

[SteelCurtain]

In the Bronze and Iron Age LEB was 26 years

The most commonly used measure of life expectancy is life expectancy at age zero, that is, at birth (LEB), which can be defined in two ways: while cohort LEB is the mean length of life of an actual birth cohort (all individuals born a given year) and can be computed only for cohorts that were born many decades ago, so that all their members died, period LEB is the mean length of life of a hypothetical cohort assumed to be exposed since birth until death of all their members to the mortality rates observed at a given year

http://en.wikipedia.org/wiki/Life_expectancy

To be fair, this is a little misleading. Life expectancy is a generally useless statistic. This would lead someone to believe that the average person's life span was 26 years old, or that most people were dying in their 20's. Not true. This speaks to high infant mortality rate. A lot of babies were dying, and that brings the life expectancy down. A better signifier of how long a person who survived infancy would live is average life span, or, more germane to this discussion, maximum human life span. For the former, it the best data for this seems to be that the Roman catacombs from that time include an overwhelming amount of 35-45 year olds. But, for the latter, there are plenty of examples of 70+ year olds from that time. Generally, the better off you were, and the more erudite you were, you stood a much better chance of surviving into your 60s-70s.