<p dir="ltr">I might be wrong but looks like Key pages contents disappeared in 2008<br>
<a href="https://wiki.openstreetmap.org/w/index.php?title=Template:KeyDescription&diff=87767&oldid=80400">https://wiki.openstreetmap.org/w/index.php?title=Template:KeyDescription&diff=87767&oldid=80400</a></p>