The 25th Anniversary of JoJo's Bizarre Adventure was a year-long promotional event occurring during 2011, the entirety of 2012 and continuing into 2013 during which the JoJo's Bizarre Adventure series and its author Hirohiko Araki's success was celebrated. It was also a widespread promotional event in Japan which has been a key factor for the (re)popularization of the franchise within Japan and overseas.[ This section requires expansion].