1.0100sourceshttps://100sources.gr/en/rich600338<blockquote class="wp-embedded-content" data-secret="WVTlHeizzH"><a href="https://100sources.gr/en/entry/postwar-internal-migration-to-volos/">Postwar internal migration to Volos</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://100sources.gr/en/entry/postwar-internal-migration-to-volos/embed/#?secret=WVTlHeizzH" width="600" height="338" title="“Postwar internal migration to Volos” — 100sources" data-secret="WVTlHeizzH" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script> /*! 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); //# sourceURL=https://100sources.gr/wp-includes/js/wp-embed.min.js </script> The reasons that drive agrarian populations to move to urban centres vary according to the time period. In general, cities attract agrarian populations because they are presented as ideal places to search for employment. Hence, it is mostly economic reasons that cause internal migration from rural areas to urban centres and lead farmers to the