In practical terms of impacting the greatest % of the population, some data that I&#x27;d like to have seen here are around life expectancy:<p>- Life expectancy, men&#x2F;women<p>- Infant mortality<p>- Accidental death<p>- Death by illness&#x2F;disease<p>- Death by military conflict<p>For example:<p>- Life expectancy  (US, men &amp; women average)<p>1870: 35.1 years<p>1920: 54.1<p>1970: 70.9<p>2012: 78.7<p>The most years gained were 1870 - 1920.<p>As for military conflict, innovation happens in politics and diplomacy as well as technology. I&#x27;d like to see how innovations in politics and diplomacy have impacted death by military conflict as military technology become increasingly lethal.