Complex sentence: Hosted by Embry-Riddle Aeronautical University's Anything Goes Anime Club, it had been held every year in Daytona Beach, Florida since 1997 until 2007 when it was canceled due to a tornado that struck Embry-Riddle on Christmas.
Split into simpler sentences: Hosted by Embry-Riddle Aeronautical University's Anything Goes Anime Club, it has been held every year in Daytona Beach, Florida since 1997. In 2007, it was canceled due to a tornado that struck Embry-Riddle on Christmas.