1st World Congress
Montreux, SwitzerlandJune 1-3 2007
2nd World Congress
Corte, CorsicaJune 17-20 2010
Call for Papers - The Square of Opposition in Historical Perspectives
Two special issues of : Square and Hexagon
3rd World Congress
Beirut, Lebanon June 26-30,2012
4th World Congress Vatican, May 5-9 2014
: Square and Hexagon 
