{"version":"1.0","provider_name":"Deutschlandmuseum","provider_url":"https:\/\/www.deutschlandmuseum.de\/en\/","author_name":"rici","author_url":"https:\/\/www.deutschlandmuseum.de\/en\/author\/rici\/","title":"The SPD Heidelberg Programme - Deutschlandmuseum","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"n3HgY0Z5O2\"><a href=\"https:\/\/www.deutschlandmuseum.de\/en\/history\/calendar\/1925-09-18-the-spd-heidelberg-programme\/\">The SPD Heidelberg Programme<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/www.deutschlandmuseum.de\/en\/history\/calendar\/1925-09-18-the-spd-heidelberg-programme\/embed\/#?secret=n3HgY0Z5O2\" width=\"600\" height=\"338\" title=\"&#8220;The SPD Heidelberg Programme&#8221; &#8212; Deutschlandmuseum\" data-secret=\"n3HgY0Z5O2\" 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:\/\/www.deutschlandmuseum.de\/wp-includes\/js\/wp-embed.min.js\n<\/script>\n","thumbnail_url":"https:\/\/www.deutschlandmuseum.de\/wp-content\/uploads\/2025\/09\/18091925_Parteitag_Heidelberg-768x432.jpg","thumbnail_width":600,"thumbnail_height":338,"description":"Although the SPD enjoyed electoral success after 1918 and spent most of the early years of the Weimar Republic in government, it realized that it would need to broaden its appeal to remain relevant. [...]"}