{"version":"1.0","provider_name":"Vox Historia - History Learning Blog","provider_url":"https:\/\/historylearning.com\/blog","author_name":"Dominic","author_url":"https:\/\/historylearning.com\/blog\/author\/admin\/","title":"Mystery of London\u2019s \u2018killer fog\u2019 solved, scientists say - Vox Historia - History Learning Blog","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"BVcuO2OZ4e\"><a href=\"https:\/\/historylearning.com\/blog\/mystery-of-londons-killer-fog-solved-scientists-say\/\">Mystery of London\u2019s \u2018killer fog\u2019 solved, scientists say<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/historylearning.com\/blog\/mystery-of-londons-killer-fog-solved-scientists-say\/embed\/#?secret=BVcuO2OZ4e\" width=\"600\" height=\"338\" title=\"&#8220;Mystery of London\u2019s \u2018killer fog\u2019 solved, scientists say&#8221; &#8212; Vox Historia - History Learning Blog\" data-secret=\"BVcuO2OZ4e\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script type=\"text\/javascript\">\n\/* <![CDATA[ *\/\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\/* ]]> *\/\n<\/script>\n","thumbnail_url":"https:\/\/historylearning.com\/blog\/wp-content\/uploads\/2016\/12\/london-fog-650.jpg","thumbnail_width":650,"thumbnail_height":430,"description":"Have you ever been in fog so thick you couldn\u2019t even see your own feet? This was the predicament residents of London\u2019s Isle of Dogs found themselves in in December 1952 when a dense, thick, toxic blanket of smog engulfed the UK capital for five days in what was probably the worst air pollution event&hellip; Continue reading &rarr;"}