diff --git a/src/doc/index.in.html b/src/doc/index.in.html
index 15279ef1b..fd4402463 100644
--- a/src/doc/index.in.html
+++ b/src/doc/index.in.html
@@ -1,4 +1,4 @@
-<h2>What is ECLS</h2>
+o<h2>What is ECLS</h2>
 
 <a href="http://ecls.sourceforge.net">ECLS</a> stands for
 <em>Embeddable Common-Lisp "Spain"</em>, and I usually read it as
@@ -8,6 +8,10 @@ comply to the <a
 href="http://www.lisp.org/HyperSpec/FrontMatter/index.html">ANSI
 X3J13</a> definition of the language.
 
+<a href="http://ecls.sourceforge.net">ECLS</a> was born from
+Giusseppe Attardi's ECoLisp environment, which was in turn based on Kyoto
+Common-Lisp. See the User's Guide for more detailed history.
+
 <p>It features</p>
 <ul>
 <li>A bytecodes compiler and interpreter.</li>