Zeno is the founder of Stoicism, an influential philosophical movement deriving its name from the Stoa (portico) where he used to teach.
Bouchard, Elsa. "Zeno of Citium (in Cyprus) at Athens". The Literary Encyclopedia. First published 01 March 2010
[http://www.litencyc.com/php/stopics.php?rec=true&UID=11303, accessed 21 December 2013.]