Swag from the first O'Reilly Open Source 
_<A HREF="https://www.oreilly.com/conferences/archive.html">Conference_</A> 
in 1999.  The snake is still fourth from the left at this point. 
These events grew until the publisher pulled the plug
on its conferences business in 
_<A HREF="https://www.oreilly.com/conferences/from-laura-baldwin.html">2020_</A> 
amidst the pandemic and its own internal morph (though they also 
grew old for me long before that).