 It seems to be just an anecdote, but there are reasons to believe that this cooperation between The Netherlands and Tunisia was crucial for the continuity of IAAS in the first years.When the Dutch cancelled their seminar, they asked all participants to come to the seminar in Tunis instead.This seminar turned out to be the "founding World Congress" of IAAS and Germany, Finland, The Netherlands, Norway, Romania, Switzerland, Czechoslovakia and of course Tunisia were the participating countries.