1.0Medievalists.nethttps://www.medievalists.netMedievalists.nethttps://www.medievalists.net/author/charlemagne/rich600338<blockquote class="wp-embedded-content" data-secret="fD7jI6gb8C"><a href="https://www.medievalists.net/2012/10/rhazes-a-pioneer-in-clinical-observation/">Rhazes: A Pioneer in Clinical Observation</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://www.medievalists.net/2012/10/rhazes-a-pioneer-in-clinical-observation/embed/#?secret=fD7jI6gb8C" width="600" height="338" title="“Rhazes: A Pioneer in Clinical Observation” — Medievalists.net" data-secret="fD7jI6gb8C" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script type="text/javascript"> /*! This file is auto-generated */ !function(c,d){"use strict";var e=!1,o=!1;if(d.querySelector)if(c.addEventListener)e=!0;if(c.wp=c.wp||{},c.wp.receiveEmbedMessage);else if(c.wp.receiveEmbedMessage=function(e){var t=e.data;if(!t);else if(!(t.secret||t.message||t.value));else if(/[^a-zA-Z0-9]/.test(t.secret));else{for(var r,s,a,i=d.querySelectorAll('iframe[data-secret="'+t.secret+'"]'),n=d.querySelectorAll('blockquote[data-secret="'+t.secret+'"]'),o=new RegExp("^https?:$","i"),l=0;l<n.length;l++)n[l].style.display="none";for(l=0;l<i.length;l++)if(r=i[l],e.source!==r.contentWindow);else{if(r.removeAttribute("style"),"height"===t.message){if(1e3<(s=parseInt(t.value,10)))s=1e3;else if(~~s<200)s=200;r.height=s}if("link"===t.message)if(s=d.createElement("a"),a=d.createElement("a"),s.href=r.getAttribute("src"),a.href=t.value,!o.test(a.protocol));else if(a.host===s.host)if(d.activeElement===r)c.top.location.href=t.value}}},e)c.addEventListener("message",c.wp.receiveEmbedMessage,!1),d.addEventListener("DOMContentLoaded",t,!1),c.addEventListener("load",t,!1);function t(){if(o);else{o=!0;for(var e,t,r,s=-1!==navigator.appVersion.indexOf("MSIE 10"),a=!!navigator.userAgent.match(/Trident.*rv:11\./),i=d.querySelectorAll("iframe.wp-embedded-content"),n=0;n<i.length;n++){if(!(r=(t=i[n]).getAttribute("data-secret")))r=Math.random().toString(36).substr(2,10),t.src+="#?secret="+r,t.setAttribute("data-secret",r);if(s||a)(e=t.cloneNode(!0)).removeAttribute("security"),t.parentNode.replaceChild(e,t);t.contentWindow.postMessage({message:"ready",secret:r},"*")}}}}(window,document); </script> Rhazes challenged accepted medical beliefs through his skepticism of certain Galenic practices, his definition of small pox and measles, and his perceptive research through clinical investigation, resulting in substantial improvements in medical beliefs and practice.http://www.medievalists.net/wp-content/uploads/2012/10/Al-RaziInGerardusCremonensis1250-440x500.jpg