Some clues :

Douglas P. Fry : Pacified Past
Azar Gat : Warfare as an Ancient Feature
Robert L. Carneiro : Complexity and State Formation

Was the 20th century one of the most violent in human history ? (with two world wars and numerous other conflicts) ?

i also like the documentary series : “The Ascent of man” from the BBC in 1973 by Jacob Bronowski.

      • JohnDClay
        111·
        6 months ago

        I couldn’t find that exact graph to the 2020s, but here are some more.

        • treadful@lemmy.zipEnglish
          5·
          6 months ago

          Thanks. That last graph seems the most relevant. Kind of wild how the regions changed so drastically in the last couple years there.