{"version":"1.0","provider_name":"History of Greece and Rome","provider_url":"http:\/\/www.antiquitatem.com\/en","author_name":"Antonio Marco Mart\u00ednez","author_url":"http:\/\/www.antiquitatem.com\/en\/author\/antiquitatem\/","title":"The white blackbird and the black swan are a rare avis (rara avis)","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\"><a href=\"http:\/\/www.antiquitatem.com\/en\/rara-avis-white-blackbird-black-swan\/\">The white blackbird and the black swan are a rare avis (rara avis)<\/a><\/blockquote>\n<script type='text\/javascript'>\n<!--\/\/--><![CDATA[\/\/><!--\n\t\t\/*! This file is auto-generated *\/\n\t\t!function(d,l){\"use strict\";var e=!1,n=!1;if(l.querySelector)if(d.addEventListener)e=!0;if(d.wp=d.wp||{},!d.wp.receiveEmbedMessage)if(d.wp.receiveEmbedMessage=function(e){var t=e.data;if(t)if(t.secret||t.message||t.value)if(!\/[^a-zA-Z0-9]\/.test(t.secret)){for(var r,i,a,s=l.querySelectorAll('iframe[data-secret=\"'+t.secret+'\"]'),n=l.querySelectorAll('blockquote[data-secret=\"'+t.secret+'\"]'),o=new RegExp(\"^https?:$\",\"i\"),c=0;c<n.length;c++)n[c].style.display=\"none\";for(c=0;c<s.length;c++)if(r=s[c],e.source===r.contentWindow){if(r.removeAttribute(\"style\"),\"height\"===t.message){if(1e3<(a=parseInt(t.value,10)))a=1e3;else if(~~a<200)a=200;r.height=a}if(\"link\"===t.message)if(i=l.createElement(\"a\"),a=l.createElement(\"a\"),i.href=r.getAttribute(\"src\"),a.href=t.value,o.test(a.protocol))if(a.host===i.host)if(l.activeElement===r)d.top.location.href=t.value}}},e)d.addEventListener(\"message\",d.wp.receiveEmbedMessage,!1),l.addEventListener(\"DOMContentLoaded\",t,!1),d.addEventListener(\"load\",t,!1);function t(){if(!n){n=!0;for(var e,t,r=-1!==navigator.appVersion.indexOf(\"MSIE 10\"),i=!!navigator.userAgent.match(\/Trident.*rv:11\\.\/),a=l.querySelectorAll(\"iframe.wp-embedded-content\"),s=0;s<a.length;s++){if(!(e=a[s]).getAttribute(\"data-secret\"))t=Math.random().toString(36).substr(2,10),e.src+=\"#?secret=\"+t,e.setAttribute(\"data-secret\",t);if(r||i)(t=e.cloneNode(!0)).removeAttribute(\"security\"),e.parentNode.replaceChild(t,e)}}}}(window,document);\n\/\/--><!]]>\n<\/script><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"http:\/\/www.antiquitatem.com\/en\/rara-avis-white-blackbird-black-swan\/embed\/\" width=\"600\" height=\"338\" title=\"&#8220;The white blackbird and the black swan are a rare avis (rara avis)&#8221; &#8212; History of Greece and Rome\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe>","description":"\"Rara avis\", \"white blackbird\", \"white crow\", \"black swan\" are ancient expressions that serve to express the rarity and scarce or exceptional existence of a being, person, animal, object and even idea and thought. We can affirm the antiquity of the expression \"rare avis\" (rare bird, strange bird) by the antiquity of its language, Latin, but also \"blackbird\" and \"black swan\" and even \"white crow\" are used from the Greco-Roman antiquity to our days."}