<div dir="ltr"><br><div class="gmail_extra"><br><div class="gmail_quote">On Mon, Jun 4, 2018 at 1:12 PM, Keith Henson <span dir="ltr"><<a href="mailto:hkeithhenson@gmail.com" target="_blank">hkeithhenson@gmail.com</a>></span> wrote:</div><div class="gmail_quote"><br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">It seems<br>
this process started when the Neolithic agricultural revolution began<br>
and ended when violence between patrilineal clans was suppressed by<br>
Chieftains or a State.<br></blockquote><div><br></div><div>Could it also have ended with the invention of widespread slavery? Prisoners then become a valuable commodity rather than a dangerous liability.</div><div><br></div><div>s </div></div><br></div></div>