On 29 July 2013 09:07, Luiz Henrique de Figueiredo 
<lhf@tecgraf.puc-rio.br> wrote:
The earliest implementation of Lua that we have found to date has files
dated 28 Jul 1993. We have dubbed that version Lua 1.0, which is available at
        http://www.lua.org/ftp/lua-1.0.tar.gz 
Lacking a precise release date, since Lua 1.0 was never released,
we commemorate 20 years of Lua today.
On behalf of the Lua team, I thank you all for your interest in Lua and
for your support and ideas during all these years, which have motivated
us to keep developing Lua.
--lhf
 If you do something for 20 years, you get very good at it. You guys must be well into your your second 10000 hours... well done!
Cheers,
Vaughan