David is correct. Prior to European occupations in Africa, Asia, and the Americas, indiginous peoples did quite well, with occassional natural disasters like doughts forcing them too move around to survive, quite well actually. Along came “agriculture”, and mostly Euorpean churches, and “new moralities” increased the cycles of death dramatically. What the churches didn’t do with slavery and disease, following ’the faith" led to tribal wars far more violent and brutal than any before those “nice” Euoropeans taught the natives how to get really brutal. BTW, eating your enemy on occassion still killed fewer people, and innocent bystanders than the wars taught with “modern methods”.