{"version":"1.0","provider_name":"American Journal of Archaeology","provider_url":"https:\/\/ajaonline.org","author_name":"website","author_url":"https:\/\/ajaonline.org\/author\/website\/","title":"From Metallurgy to Bronze Age Civilizations: The Synthetic Theory | October 2009 (113.4) | American Journal of Archaeology","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"AjSkfZwpY4\"><a href=\"https:\/\/ajaonline.org\/article\/300\/\">From Metallurgy to Bronze Age Civilizations: The Synthetic Theory<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/ajaonline.org\/article\/300\/embed\/#?secret=AjSkfZwpY4\" width=\"600\" height=\"338\" title=\"&#8220;From Metallurgy to Bronze Age Civilizations: The Synthetic Theory&#8221; &#8212; American Journal of Archaeology\" data-secret=\"AjSkfZwpY4\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script>\n\/*! This file is auto-generated *\/\n!function(d,l){\"use strict\";l.querySelector&&d.addEventListener&&\"undefined\"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!\/[^a-zA-Z0-9]\/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret=\"'+t.secret+'\"]'),o=l.querySelectorAll('blockquote[data-secret=\"'+t.secret+'\"]'),c=new RegExp(\"^https?:$\",\"i\"),i=0;i<o.length;i++)o[i].style.display=\"none\";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute(\"style\"),\"height\"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):\"link\"===t.message&&(r=new URL(s.getAttribute(\"src\")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener(\"message\",d.wp.receiveEmbedMessage,!1),l.addEventListener(\"DOMContentLoaded\",function(){for(var e,t,s=l.querySelectorAll(\"iframe.wp-embedded-content\"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute(\"data-secret\"))||(t=Math.random().toString(36).substring(2,12),e.src+=\"#?secret=\"+t,e.setAttribute(\"data-secret\",t)),e.contentWindow.postMessage({message:\"ready\",secret:t},\"*\")},!1)))}(window,document);\n\/\/# sourceURL=https:\/\/ajaonline.org\/wp-includes\/js\/wp-embed.min.js\n<\/script>\n","description":"During the past few decades, evidence for the ancient smelting of copper has been discovered in areas isolated from one another. In most of them, the beginning of metallurgy had no substantial social and cultural consequences. Accordingly, the diffusionist theory (assuming the existence of a single homeland for metallurgy and its central importance in cultural [&hellip;]"}