full stopp
"The  full stop symbol derives from Aristophanes of Byzantium who invented  the system of punctuation where the height of placement of a dot on the  line determined its meaning. The high dot (.) was called a "periodos"  and indicated a finished thought or sentence, the middle dot (·) was  called a "kolon" and indicated part of a complete thought while the low  dot (.) was called a "komma" and indicated a part of a complete thought."
Photograph and text by Marcus Henry. 
http://www.flickr.com/photos/26397995@N07/5370546458/| Just a Dot by d i a n e p o w e r s |