Which is why life expectancy at birth was actually in the 20s: http://en.wikipedia.org/wiki/Life_expectancy#Life_expectancy_variation_over_time http://en.wikip

Which is why life expectancy at birth was actually in the 20s: http://en.wikipedia.org/wiki/Life_expectancy#Life_expectancy_variation_over_time http://en.wikipedia.org/wiki/Life_expectancy#Life_expectancy...