The M5S was founded on 4 October 2009 by Beppe Grillo, a comedian and blogger, and Gianroberto Casaleggio, a web strategist.
M5S dimulai pada 4 Oktober 2009 oleh Beppe Grillo, seorang komedian dan narablog populer, dan Gianroberto Casaleggio, seorang pakar strategi web.