{"version":"1.0","provider_name":"Encyclopedia of Greater Philadelphia","provider_url":"https:\/\/philadelphiaencyclopedia.org","title":"Nineteenth Century after 1854 - Encyclopedia of Greater Philadelphia","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"Z04BzMMzjb\"><a href=\"https:\/\/philadelphiaencyclopedia.org\/time-periods\/nineteenth-century-after-1854\/\">Nineteenth Century after 1854<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/philadelphiaencyclopedia.org\/time-periods\/nineteenth-century-after-1854\/embed\/#?secret=Z04BzMMzjb\" width=\"600\" height=\"338\" title=\"&#8220;Nineteenth Century after 1854&#8221; &#8212; Encyclopedia of Greater Philadelphia\" data-secret=\"Z04BzMMzjb\" 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:\/\/philadelphiaencyclopedia.org\/wp-includes\/js\/wp-embed.min.js\n<\/script>\n","thumbnail_url":"https:\/\/philadelphiaencyclopedia.org\/wp-content\/uploads\/2014\/10\/SteamEngine01-e1413660642394.jpg","thumbnail_width":2328,"thumbnail_height":1502,"description":"The nation celebrated the one-hundredth anniversary of the Declaration of Independence in 1876 in Philadelphia with the Centennial Exhibition, the first full-scale world&#8217;s fair held in the United States. As the exhibits in Fairmount Park demonstrated, the cause for celebration was not primarily history but industrial progress. In the decades after the Civil War, large-scale [&hellip;]"}