While Commonwealth conferences were normally held Hold biennially , this conference was held Hold after an interval of only a year as the May 1960 conference due to disagreement Agree_or_refuse_to_act over South Africa and whether the country should be removed Removing from the Commonwealth due to its policy of racial segregation Removing with Malaya 's Prime Minister demanding Request South Africa 's expulsion .

since 1993 , the air show was renamed Name_conferral as maks and is held Defending biennially on odd years .

The Kish Airshow also known as Persian Gulf Airshow is an aviation airshow held Hold biennially on Kish Island , Iran .

Originally presented Presence biennially , along with the ( initially unofficial ) Adelaide Fringe , the Fringe has been held Hold annually since 2007 , with the Festival of Arts going annual a few years later , in 2012 .

They were held Hold biennially up to 2003 ( with the exception of 1978 and 1979 ) .