NQP timeline
- 2005 - early Parser Grammar Engine (PGE) for Parrot
- 2006 - robust PGE, early Tree Grammar Engine (TGE)
- 2007 - TGE abandoned, early NQP and Parrot Compiler Toolkit (PCT)
- 2008 - Rakudo Perl 6 developed with PGE, NQP, and PCT
- 2009 - PGE limitations, redeveloped as self-hosted NQP-rx
- 2010 - Rakudo redeveloped with NQP-rx