A short review of the history and a 'slide-show' of QCD tests in e"+e"-annihilation is given. The world summary of measurements of #alpha#_s is updated. (orig.)Available from TIB Hannover: RN 6945(1997,37) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEDEGerman