<div dir="ltr">Yeah, this is one of those things that is common knowledge to basically every student of military history, but that almost no one outside their field has ever heard of.</div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu, Jan 26, 2023 at 9:16 AM William Flynn Wallace via extropy-chat <<a href="mailto:extropy-chat@lists.extropy.org">extropy-chat@lists.extropy.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div class="gmail_default" style="font-family:"comic sans ms",sans-serif;font-size:large;color:rgb(0,0,0)"><span style="color:rgb(32,33,34);font-family:sans-serif;font-size:21px">(from Wikipedia)  .......was one of the basic </span><a href="https://en.wikipedia.org/wiki/Tool" title="Tool" style="text-decoration-line:none;color:rgb(51,102,204);background-image:none;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial;font-family:sans-serif;font-size:21px" target="_blank">tools</a><span style="color:rgb(32,33,34);font-family:sans-serif;font-size:21px"> used to create and spread modern </span><a href="https://en.wikipedia.org/wiki/Civilization" title="Civilization" style="text-decoration-line:none;color:rgb(51,102,204);background-image:none;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial;font-family:sans-serif;font-size:21px" target="_blank">civilization</a><span style="color:rgb(32,33,34);font-family:sans-serif;font-size:21px">, possibly as important as the </span><a href="https://en.wikipedia.org/wiki/Wheel" title="Wheel" style="text-decoration-line:none;color:rgb(51,102,204);background-image:none;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial;font-family:sans-serif;font-size:21px" target="_blank">wheel</a><span style="color:rgb(32,33,34);font-family:sans-serif;font-size:21px"> or </span><a href="https://en.wikipedia.org/wiki/Printing_press" title="Printing press" style="text-decoration-line:none;color:rgb(51,102,204);background-image:none;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial;font-family:sans-serif;font-size:21px" target="_blank">printing press</a><span style="color:rgb(32,33,34);font-family:sans-serif;font-size:21px">.</span><sup id="m_1364390936837710458gmail-cite_ref-Baber_1996_4-1" style="line-height:1;unicode-bidi:isolate;white-space:nowrap;font-size:16.8px;color:rgb(32,33,34);font-family:sans-serif"><a href="https://en.wikipedia.org/wiki/Stirrup#cite_note-Baber_1996-4" style="text-decoration-line:none;color:rgb(51,102,204);background:none" target="_blank">[4]</a></sup><br></div><div class="gmail_default" style="font-family:"comic sans ms",sans-serif;font-size:large;color:rgb(0,0,0)">scroll down for answer after not coming up with anything,like me  bill w</div><div class="gmail_default" style="font-family:"comic sans ms",sans-serif;font-size:large;color:rgb(0,0,0)"><br></div><div class="gmail_default" style="font-family:"comic sans ms",sans-serif;font-size:large;color:rgb(0,0,0)"><br></div><div class="gmail_default" style="font-family:"comic sans ms",sans-serif;font-size:large;color:rgb(0,0,0)"><br></div><div class="gmail_default" style="font-family:"comic sans ms",sans-serif;font-size:large;color:rgb(0,0,0)"><br></div><div class="gmail_default" style="font-family:"comic sans ms",sans-serif;font-size:large;color:rgb(0,0,0)"><br></div><div class="gmail_default" style="font-family:"comic sans ms",sans-serif;font-size:large;color:rgb(0,0,0)">the stirrup - enabled fighting from horseback</div></div>
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