This paper discusses the Art Biennial of Venice in 1999 through 2019 through a historical analysis of catalog forewords published during that period. The results indicate the various changes to the Biennial and illuminate biennialization as an underlying factor. The spatial expansion of the exhibition and the increase in the number of participating countries enlarged the Biennial as a counteraction to biennialization. The ideal model of the Biennial as “a place of research” is one positive outcome of biennialization.