 Valerio Proietti first authored the framework and released it in September 2006 taking as his inspiration Prototype and Dean Edward's base2.MooTools originated from Moo.fx, a popular JavaScript effects library released in October 2005 by Valerio Proietti as an add-on to the Prototype Javascript Framework.It can be used as a lighter alternative to script.aculo.us or other, bigger libraries.