What is the Common Era? | Human World | EarthSky

The upper torso and hand (holding a pen) of a person thinking and writing.

What is the Common Era?

Like all things human, calendars evolve. We in the western world trace our calendrical root...

Copy and paste this URL into your WordPress site to embed

<blockquote class="wp-embedded-content" data-secret="mDgdCEgxJY"><a href="https://earthsky.org/human-world/definition-common-era-bce-ce-bc-ad/">What is the Common Era?</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://earthsky.org/human-world/definition-common-era-bce-ce-bc-ad/embed/#?secret=mDgdCEgxJY" width="600" height="400" title="&#8220;What is the Common Era?&#8221; &#8212; EarthSky" data-secret="mDgdCEgxJY" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script type="text/javascript">
/* <![CDATA[ */
/*! This file is auto-generated */
!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);
/* ]]> */
</script>

Copy and paste this code into your site to embed