The 56th Venice Biennale opens next week, and ARTnews will be on the ground providing regular reports from around the city. Today, a quick look at the recent history of the central exhibition. Okwui Enwezor’s show features 136 participants, a slight decrease from the roughly 160 that Massimiliano Gioni showed at his biennale exhibition in 2013. The number of participants peaked in Francesco Bonami’s action-packed show a decade earlier, when he tapped seven co-curators and included a full 400 participants.