===== e16 =====

==== References =====
  * lwn indicates e16 released on 2000: https://lwn.net/Articles/453699/
  * changelog indicates e16 released on 1999: https://git.enlightenment.org/e16/e16.git/tree/ChangeLog?h=v1.0.21
  * changelog indicates e17 released on 2012: https://git.enlightenment.org/core/enlightenment.git/tree/ChangeLog?h=v0.23.1