Kammala jumla mai zuwa: A watan Yunin 2014, Kostadin Kostadinov ya fada wa kafofin watsa labarai cewa a ranar 2 ga Agusta a wannan shekarar, a garin Pliska za a gudanar da Babban Taron wanda zai kirkiro jam'iyyar "Tashin hankali". Masu ƙaddamarwa sun zaɓi ranar da aka yi bikin tunawa da ranar haihuwar.
Tashin hankali na Ilinden. Kostadinov ya kafa jam'iyyar ne bayan ya zama ba shi da farin ciki bayan sake zaben Krasimir Karakachanov a matsayin shugaban IMRO-BNM a shekarar 2012.