<?xml version="1.0"?>
<oembed><version>1.0</version><provider_name>Wonderful Things</provider_name><provider_url>https://blog.soton.ac.uk/wonderful</provider_url><title>Roman Nails - Wonderful Things</title><type>rich</type><width>600</width><height>338</height><html>&lt;blockquote class="wp-embedded-content" data-secret="Gebw6YJ0XJ"&gt;&lt;a href="https://blog.soton.ac.uk/wonderful/major-theme/ancient-empires/roman-nails/"&gt;Roman Nails&lt;/a&gt;&lt;/blockquote&gt;&lt;iframe sandbox="allow-scripts" security="restricted" src="https://blog.soton.ac.uk/wonderful/major-theme/ancient-empires/roman-nails/embed/#?secret=Gebw6YJ0XJ" width="600" height="338" title="&#x201C;Roman Nails&#x201D; &#x2014; Wonderful Things" data-secret="Gebw6YJ0XJ" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"&gt;&lt;/iframe&gt;&lt;script type="text/javascript"&gt;
/* &lt;![CDATA[ */
/**
 * WordPress inline HTML embed
 *
 * @since 4.4.0
 * @output wp-includes/js/wp-embed.js
 *
 * Single line comments should not be used since they will break
 * the script when inlined in get_post_embed_html(), specifically
 * when the comments are not stripped out due to SCRIPT_DEBUG
 * being turned on.
 */
(function ( window, document ) {
	'use strict';

	/* Abort for ancient browsers. */
	if ( ! document.querySelector || ! window.addEventListener || typeof URL === 'undefined' ) {
		return;
	}

	/** @namespace wp */
	window.wp = window.wp || {};

	/* Abort if script was already executed. */
	if ( !! window.wp.receiveEmbedMessage ) {
		return;
	}

	/**
	 * Receive embed message.
	 *
	 * @param {MessageEvent} e
	 */
	window.wp.receiveEmbedMessage = function( e ) {
		var data = e.data;

		/* Verify shape of message. */
		if (
			! ( data || data.secret || data.message || data.value ) ||
			/[^a-zA-Z0-9]/.test( data.secret )
		) {
			return;
		}

		var iframes = document.querySelectorAll( 'iframe[data-secret="' + data.secret + '"]' ),
			blockquotes = document.querySelectorAll( 'blockquote[data-secret="' + data.secret + '"]' ),
			allowedProtocols = new RegExp( '^https?:$', 'i' ),
			i, source, height, sourceURL, targetURL;

		for ( i = 0; i &lt; blockquotes.length; i++ ) {
			blockquotes[ i ].style.display = 'none';
		}

		for ( i = 0; i &lt; iframes.length; i++ ) {
			source = iframes[ i ];

			if ( e.source !== source.contentWindow ) {
				continue;
			}

			source.removeAttribute( 'style' );

			if ( 'height' === data.message ) {
				/* Resize the iframe on request. */
				height = parseInt( data.value, 10 );
				if ( height &gt; 1000 ) {
					height = 1000;
				} else if ( ~~height &lt; 200 ) {
					height = 200;
				}

				source.height = height;
			} else if ( 'link' === data.message ) {
				/* Link to a specific URL on request. */
				sourceURL = new URL( source.getAttribute( 'src' ) );
				targetURL = new URL( data.value );

				if (
					allowedProtocols.test( targetURL.protocol ) &amp;&amp;
					targetURL.host === sourceURL.host &amp;&amp;
					document.activeElement === source
				) {
					window.top.location.href = data.value;
				}
			}
		}
	};

	function onLoad() {
		var iframes = document.querySelectorAll( 'iframe.wp-embedded-content' ),
			i, source, secret;

		for ( i = 0; i &lt; iframes.length; i++ ) {
			/** @var {IframeElement} */
			source = iframes[ i ];

			secret = source.getAttribute( 'data-secret' );
			if ( ! secret ) {
				/* Add secret to iframe */
				secret = Math.random().toString( 36 ).substring( 2, 12 );
				source.src += '#?secret=' + secret;
				source.setAttribute( 'data-secret', secret );
			}

			/*
			 * Let post embed window know that the parent is ready for receiving the height message, in case the iframe
			 * loaded before wp-embed.js was loaded. When the ready message is received by the post embed window, the
			 * window will then (re-)send the height message right away.
			 */
			source.contentWindow.postMessage( {
				message: 'ready',
				secret: secret
			}, '*' );
		}
	}

	window.addEventListener( 'message', window.wp.receiveEmbedMessage, false );
	document.addEventListener( 'DOMContentLoaded', onLoad, false );
})( window, document );

/* ]]&gt; */
&lt;/script&gt;
</html><description>The technologies of smelting and working iron were developed in Europe, Asia and Africa. They had a major impact in many areas of life and work, including better tools for agriculture and industry, and more effective arms and armour. The production of nails also had an impact on activities such as construction and ship-building. Supplies of high-quality iron were particularly &#x2026;</description><thumbnail_url>http://blog.soton.ac.uk/wonderful/files/2013/10/WT_Wk9_RomanNails_CC-BY-SA-30-300x189.jpg</thumbnail_url></oembed>
