--- a/Overview.html	Thu Nov 24 11:20:31 2011 +0100
+++ b/Overview.html	Thu Nov 24 12:10:41 2011 +0100
@@ -125,7 +125,9 @@
   
 <!--begin-toc-->
 <ol class="toc">
- <li><a href="#introduction"><span class="secno">1 </span>Introduction</a></li>
+ <li><a href="#introduction"><span class="secno">1 </span>Introduction</a>
+  <ol class="toc">
+   <li><a href="#specification-history"><span class="secno">1.1 </span>Specification history</a></ol></li>
  <li><a href="#conformance"><span class="secno">2 </span>Conformance</a>
   <ol class="toc">
    <li><a href="#dependencies"><span class="secno">2.1 </span>Dependencies</a></li>
@@ -246,6 +248,25 @@
   </div>
 
 
+<h3 id="specification-history"><span class="secno">1.1 </span>Specification history</h3>
+
+<p>The <code><a href="#xmlhttprequest">XMLHttpRequest</a></code> object was initially defined as part of
+the WHATWG's HTML effort. It moved to the W3C in 2006. Extensions (e.g.
+progress events and cross-origin requests) to <code><a href="#xmlhttprequest">XMLHttpRequest</a></code>
+were developed in a separate draft until end of 2011, at which point the two
+drafts were merged and <code><a href="#xmlhttprequest">XMLHttpRequest</a></code> became a single entity
+again from a standards perspective.</p>
+
+<p>Historical discussion can be found in the following mailing list
+archives:
+
+<ul>
+ <li><a href="http://lists.whatwg.org/htdig.cgi/whatwg-whatwg.org/">whatwg@whatwg.org</a>
+ <li><a href="http://lists.w3.org/Archives/Public/public-webapi/">public-webapi@w3.org</a>
+ <li><a href="http://lists.w3.org/Archives/Public/public-appformats/">public-appformats@w3.org</a>
+ <li><a href="http://lists.w3.org/Archives/Public/public-webapps/">public-webapps@w3.org</a>
+</ul>
+
 
 
   <h2 id="conformance"><span class="secno">2 </span>Conformance</h2>

--- a/Overview.src.html	Thu Nov 24 11:20:31 2011 +0100
+++ b/Overview.src.html	Thu Nov 24 12:10:41 2011 +0100
@@ -207,6 +207,25 @@
   </div>
 
 
+<h3>Specification history</h3>
+
+<p>The <code>XMLHttpRequest</code> object was initially defined as part of
+the WHATWG's HTML effort. It moved to the W3C in 2006. Extensions (e.g.
+progress events and cross-origin requests) to <code>XMLHttpRequest</code>
+were developed in a separate draft until end of 2011, at which point the two
+drafts were merged and <code>XMLHttpRequest</code> became a single entity
+again from a standards perspective.</p>
+
+<p>Historical discussion can be found in the following mailing list
+archives:
+
+<ul>
+ <li><a href="http://lists.whatwg.org/htdig.cgi/whatwg-whatwg.org/">whatwg@whatwg.org</a>
+ <li><a href="http://lists.w3.org/Archives/Public/public-webapi/">public-webapi@w3.org</a>
+ <li><a href="http://lists.w3.org/Archives/Public/public-appformats/">public-appformats@w3.org</a>
+ <li><a href="http://lists.w3.org/Archives/Public/public-webapps/">public-webapps@w3.org</a>
+</ul>
+
 
 
   <h2 id="conformance">Conformance</h2>