Cisco Live San Diego 2019 June 9-13, 2019. Website
Common Unix Printing System (CUPS) First released release June 9, 1999. Wikipedia
DEF CON (aka: DEFCON) One of the world's largest security/hacker conventions. First held June 9, 1993. Website Wikipedia
Laravel PHP web framework developed by Taylor Otwell. First released as a beta June 9, 2011. Website Wikipedia
Unity Shell for the GNOME desktop environment from Canonical. First released June 9, 2010. Website Wikipedia