.htaccess

<IfModule mod_rewrite.c>
  RewriteEngine on

  # See https://httpd.apache.org/docs/2.4/rewrite/remapping.html
  RewriteRule ^cypherpunks$ /events/2013/cypherpunks/ [R]
  RewriteRule ^campusparty$ /events/2014/campusparty/ [R]
  RewriteRule ^cryptorave$  /events/2014/cryptorave/  [R]
  RewriteRule ^fisl$        /events/2015/fisl/        [R]
</IfModule>