"Believe it or not, the KDE desktop environment turned 19 years old on October 14, 2015. Yes, it has been 19 long years since Matthias Ettrich announced his new project, the Kool Desktop Environment (KDE)."

-- source: http://linux.softpedia.com/blog/the-kool-desktop-environment-kde-turns-19-ha...

Cheers, Peter