Born in Brasil in the year 1993 at the Pontifical Catholic University of Rio de Janeiro, developed by Roberto Ierusalimschy, Luiz Henrique de Figueiredo, and Waldemar Celes, members of the Computer Graphics Technology Group (Tecgraf). From 1977 until 1992, Brazil had a policy of strong trade barriers (called a market reserve) for computer hardware and software. In that atmosphere, Tecgraf's clients could not afford, either politically or financially, to buy customized software from abroad. Those reasons led Tecgraf to implement the basic tools it needed from scratch.
Lua (from Portuguese: lua meaning moon) is a lightweight, multi-paradigm programming language designed primarily for embedded use in applications. Lua is cross-platform, since the interpreter is written in ANSI C, and has a relatively simple C API.
The Lua interpreter is written in ANSI C, hence it is highly portable and can run on a vast spectrum of devices from high-end network servers to small devices. Details of methods and other aspects of the language can be found here: Lua Language Reference.